Question

4,5x-2/3(8x-10)=4-2x

Answer 1

4,5x-2/3(8x-10)=4-2x
4,5x-5 1/3x+6 2/3=4-2x
4,5x-5 1/3x+2x=4-6 2/3
1 1/6x=-2 2/3
x=-2 2/3:1 1/6
x=-2 2/7
Ответ:x=-2 2/7

Answer 2

/ - дробь , : деление 
4,5х-2/3*(8х-10)=4-2х
4,5х-16/3х+20/3=4-2х
9/2х-16/3х+0/1=4-2х
-5/6х+20/3=4-2х
-5х+40=24-12х
-5х+12х=24-40
7х=-16
х=-16:7
х=-16/7 или 2 2/7