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26 March, 06:31

Solve system by elimination

20x-12y=-20

-10x+6y=10

+5
Answers (1)
  1. 26 March, 06:48
    0
    10x+6y=10 / * 2 = > 20x + 12y = 20; but, 20x - 12y = - 20 = > 40x = 0 = > x = 0; 12y = 20 = > y = 20 / 12 = > y = 1, (6).
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