Question

qual o resultado da conta 5-4(x-1)=4x-3(4x-1)-4? com conta pfv

Answer 1

$5 - 4(x - 1) = 4x - 3(4x - 1) - 4 \\ 5 - 4x + 4 = 4x - 12x + 3-4 \\ - 4x - 4x + 12x = 3 - 5 - 4 -4\\ 4x = - 10 \\ x = - \frac{10}{4} \\ x = - \frac{5}{2}$

Answer 2

Nanuby,

5 - 4(x-1) = 4x - 3(4x-1) - 4

5 - 4x + 4 = 4x - 12x + 3 - 4

-4x - 4x + 12x = 3 - 4 - 5 - 4

-8x + 12x = 3 - 13

4x = -10

x = -10/4

x = -10:2/4:2

x = -5/2