Question

Resolva - x + 3 = - 8 x +7

Answer 1

Olá...

$- x + 3 = - 8x + 7 \\ \\ - x + 8x = 7 - 3 \\ \\ 7x = 4 \\ \\ \frac{7x}{7} = \frac{4}{7} \\ \\ \\ x = \frac{4}{7}$

X≈0,571428...