7[4w+2(8x+7)]-w=9(3w+7)+13 olds help
\(7[4w+2(8x+7)]-w=9(3w+7)+13 \\ 7[4w+16x+14)]-w=27w+63+13 \\ 28w+112x+98-w=27w+76 \\ 27w+112x+98=27w+76 \\ 112x+98=76 \\ 112x=76-98 \\ x= \frac{-22}{112} = -\frac{11}{56}\)