Solve for x and y; 139x + 56y = 641 56x + 139y = 724
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x=3,y=4 if u want the steps???
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Answer:
Given:
139x + 56y = 641 ------------ (1)
56x + 139y = 724 ----------- (2)
(1) + (2) ⇒ 195x + 195y = 1365
⇒
⇒ ------------------- (3)
(2) - (1) ⇒ 83x - 83y = -83
⇒
⇒ x + y = -1 --------------------- (4)
(3) +(4) ⇒ 2x = 6
⇒ x = 3
⇒ y = 4
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