Question

решите уравнение 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=3+60+45-24
4x=84
x=84/4
x=21

Answer 2

9*х-9*5+4*6-4*х=3+3*х+3*20-2х
9х-45+24-4х=3+3х+60-2х
9х-4х-3х+2х=3+60+45-24
4х=84
х=84:4
х=21