Question

-x+1=3x-4 a solução tem que ser 5/4

Answer 1

Resposta:

$-x+1=3x-4\\ \\ -x-3x=-4-1\\ \\ -4x=-5~~~~\times(-1)\\ \\ 4x=5\\ \\\boxed{ x=\dfrac{5}{4}}$

Answer 2

$\large\sf{} - x + 1 = 3x - 4 \\ \large\sf{} - x + 1 - 3x = - 4 \\ \large\sf{} - x - 3x = - 4 - 1 \\ \large\sf{} - 4x = - 4 - 1 \\ \large\sf{} - 4x = - 5 \\ \\ \large\sf{}x = \dfrac{5}{4} \\ \\{\large\boxed{\boxed{  { \large \sf x = \dfrac{5}{4} }}}}$

${\large\boxed{\boxed{  { \large \sf Bons~Estudos }}}}$