Question

resolva o sistema de equaçao 3x+4(2-y)=2x 11+3(x-1)=-y+1

Answer 1

Oi 

3x + 4*(2 - y) = 2x
11 + 3*(x - 1) = -y + 1

3x + 8 - 4y - 2x = 0
x - 4y = -8

11 + 3x - 3 + y - 1 = 0
3x + y + 7 = 0
3x + y = -7

sistema
x - 4y = -8
3x + y = -7
12x + 4y = -28

13x = -36
x = -36/13 

-36/13 - 4y = -104/13
4y = (104 - 36)/13 = 68/13
y = 17/13 

S = (-36/13, 17/13)



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