9*(х-5)+4*(6-х)=3+3*(х+20)-2х

Question

9*(х-5)+4*(6-х)=3+3*(х+20)-2х

Answer 1

9x-45+24-4x=3+3x+60-2x
9x-4x-3x+2x= 45-24+3+60
4x=84
x=21

Answer 2

9(х-5)+4(6-х)=3+3(х+20)-2х

9х-45+24-4х=3+3х+60-2х

9х-45+24-4х-3-3х-60+2х=0

4х-84=0

4х=84

х=21