Question

-2x+10-1=3x+7-7x
Alguém me ajudaaa

Answer 1

-2x-3x+7x=-10+1+7
2x=-2
x=-1

Answer 2

$- 2x + 10 - 1 = 3x + 7 - 7x \\ - 2x + 9 = - 4x + 7 \\ - 2x + 4x = 7 - 9 \\ 2x = - 2 \\ x = \frac{ - 2}{2} \\ x = - 1$