Question

como fazer 8-(x+3)-(2x-1)=x-7

Answer 1

$8-(x+3)-(2x-1)=x-7 \\ 6-3x=x-7 \\ -3x-x=-7-6 \\ -4x=-7-6 \\ -4x=-13 \\ x=-13/4 \\ x= \frac{-13}{-4} \\ x= \frac{13}{4}$