Question

9×(x-5)+4×(6-x)=3+3×(x+20)-2x

Answer 1

9*(x-5)+4*(6-x)=3+3*(x+20)-2*x
9*x-45+24-4*x=3+3*x+60-2*x
7*x=63+45-24
7*x=84
x=12