Question

10-(8×-2)=5×+2(-4×+1)




opções:
a= -5
b= -2
b= 2
c= 5
d= 10
​

Answer 1

Boa Tarde !!!

$10 - (8x - 2) = 5x + 2 (-4x + 1)\\\\10 - 8x - 2 = 5x + (-8) + 2\\\\- 8x - 5x = - 8 + 2 - 10 + 2\\\\- 13x = - 14.(-1)\\\\13x = 14\\\\x = \frac{14}{13} \\\\x = 1,07...$

Espero ter ajudado :-)

Att: LDC

Answer 2

10 - (8x - 2) = 5x + 2(-4x + 1)

10 - 8x + 2 = 5x - 8x + 2

-8x - 5x + 8x = 2 - 10 - 2

-5x = -10

x = 2

Resultado: 2

Espero ter ajudado e bons estudos.