{"id":73,"date":"2025-11-11T11:18:52","date_gmt":"2025-11-11T11:18:52","guid":{"rendered":"https:\/\/maths4u.gr\/wordpress\/?page_id=73"},"modified":"2026-01-09T10:29:22","modified_gmt":"2026-01-09T08:29:22","slug":"parastaseis","status":"publish","type":"page","link":"https:\/\/maths4u.gr\/index.php\/parastaseis\/","title":{"rendered":"\u03a0\u03b1\u03c1\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2"},"content":{"rendered":"\r\n<p class=\"has-medium-font-size wp-block-paragraph\">\u0391\u03c2 \u03c5\u03c0\u03bf\u03b8\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03b1\u03bb\u03b3\u03b5\u03b2\u03c1\u03b9\u03ba\u03ae \u03c0\u03b1\u03c1\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03bc\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03ac\u03b3\u03bd\u03c9\u03c3\u03c4\u03b5\u03c2 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ad\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03c4\u03b1 \u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1 \\(x, y, z, \u03b1, \u03b2, \u03b3\\) \u03ba\u03bb\u03c0 \u03ba\u03b1\u03b9 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2, \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03c4\u03b7\u03bd \\[3\\cdot x-5\\cdot y\\] \u03ba\u03b1\u03b9 \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b9\u03bc\u03ae \u03c4\u03b7\u03c2 \u03b3\u03b9\u03b1 \\(x=3\\) \u03ba\u03b1\u03b9 \\(y=2\\). <br \/>\u03a4\u03cc\u03c4\u03b5 \u03c3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u03ba\u03ac\u03b8\u03b5 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ae\u03c2, \u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03b7\u03c4\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03c4\u03b7\u03c2 \u03bf\u03c0\u03cc\u03c4\u03b5 \u03b8\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \\[3 \\cdot 3 &#8211; 5\\cdot 2=9-10=-1.\\]<\/p>\r\n\r\n\r\n\r\n<p class=\"has-medium-font-size wp-block-paragraph\">\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1.<br \/>\u039d\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7: \\[ 4x-(7-z)-5y \\] \u03b3\u03b9\u03b1 \\(x=2, y=5, z=4.\\) \u03a3\u03c4\u03b7\u03bd \u03b8\u03ad\u03c3\u03b7 \u03c4\u03c9\u03bd \\(x, y, z\\) \u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03b9 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5: \\[ 4\\cdot 2-(7-4)-5\\cdot 5 = 8-3-25=20.\\]<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>\u0391\u03c2 \u03c5\u03c0\u03bf\u03b8\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03b1\u03bb\u03b3\u03b5\u03b2\u03c1\u03b9\u03ba\u03ae \u03c0\u03b1\u03c1\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03bc\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03ac\u03b3\u03bd\u03c9\u03c3\u03c4\u03b5\u03c2 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ad\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03c4\u03b1 \u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1 \\(x, y, z, \u03b1, \u03b2, \u03b3\\) \u03ba\u03bb\u03c0 \u03ba\u03b1\u03b9 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2, \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03c4\u03b7\u03bd \\[3\\cdot x-5\\cdot y\\] \u03ba\u03b1\u03b9 \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b9\u03bc\u03ae \u03c4\u03b7\u03c2 \u03b3\u03b9\u03b1 \\(x=3\\) \u03ba\u03b1\u03b9 \\(y=2\\). \u03a4\u03cc\u03c4\u03b5 \u03c3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u03ba\u03ac\u03b8\u03b5 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ae\u03c2, \u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03b7\u03c4\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03c4\u03b7\u03c2 \u03bf\u03c0\u03cc\u03c4\u03b5 \u03b8\u03b1 &hellip; <a href=\"https:\/\/maths4u.gr\/index.php\/parastaseis\/\" class=\"more-link\">\u0394\u03b9\u03b1\u03b2\u03ac\u03c3\u03c4\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1<span class=\"screen-reader-text\"> &#8220;\u03a0\u03b1\u03c1\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-73","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/maths4u.gr\/index.php\/wp-json\/wp\/v2\/pages\/73","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/maths4u.gr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/maths4u.gr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/maths4u.gr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/maths4u.gr\/index.php\/wp-json\/wp\/v2\/comments?post=73"}],"version-history":[{"count":6,"href":"https:\/\/maths4u.gr\/index.php\/wp-json\/wp\/v2\/pages\/73\/revisions"}],"predecessor-version":[{"id":472,"href":"https:\/\/maths4u.gr\/index.php\/wp-json\/wp\/v2\/pages\/73\/revisions\/472"}],"wp:attachment":[{"href":"https:\/\/maths4u.gr\/index.php\/wp-json\/wp\/v2\/media?parent=73"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}