Question

vamos resolver as seguintes equações a)4-4(x-1)=4x-3(4x-1)-4

Answer 1

Vamos:

$4-4(x-1)=4x-3(4x-1)-4\\ \\4-4x+4=4x-12x+3-4\\ \\(4+4)-4x=(3-4)+(4x-12x)\\ \\8-4x=-1-8x\\ \\8x-4x=-8-1\\ \\4x=-9\\ \\x=-\frac{9}{4}$

Answer 2

OI

a)

4 - 4(x - 1) = 4x - 3(4x - 1) - 4

4 - 4x + 4 = 4x - 12x  + 3 - 4

- 4x - 4x + 12x = 3 - 4 - 4 - 4

4x = - 9

x = - 9/4

Resposta: x = - 9/4

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