Question

2( x + y ) = 2 - x
6 + x + y = 0

Answer 1

Resposta:

2(x+y)=2-x 6+x+y=0

2x+2y=2-x x + y = -6

2x+2y+x=2

3x + 2y = 2

x + y = - 6 ( - 2)

3x +2y = 2

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-2x - 2y = 12

3x +2y = 2

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x + 0 = 14 x + y = -6

--------- 14 + y = -6

/ x =14 / y = -6 - 14

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/ y -20/

solução = ( 14, - 20)