Question

9*(X-5)+4*(6-X)=3+3*(X+20)-2X.

Answer 1

9(x-5)+4(6-x)=3+3(x+20)-2x
9x-45+24-4x=3+3x+60-2x
9x-4x-3x+2x=45-24+3+60
4x=84
x=21