15-03-2018
Mathematics

contestada

solve the system x+3y=2 x+y=2

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musiclover10045 musiclover10045

15-03-2018

x +3y = 2

x+y = 2 (rewrite as x=2-y)

2-y +3y = 2
2 +2y = 2
2y = 0

y = 0

x +0 = 2
x = 2

x = 2, y=0

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