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

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

9х-45+24-4х=3+3х-60-2х

9х-4х-3х+2х=45-24+3-60

4х=-36

х=-9

ВОТ ТАК ПРОСТО!!!

Answer 2

9*(х-5)+4*(6-х)=3+3*(х-20)-2х

9х-45+24-4х=3+3х-60-2х

9х-4х-3х+2х=45-24+3-60

4х=-36

х=-36:4

х=-9