Question

2) 7х+3=30-2х
4) 0,2х+2,7=1,4-1,1х
6) 3/8 +15=1/6 +10

Answer 1

Ответ:

2)7х+2х=-3+30

9х=-27:9

9х=3

Answer 2

4)0,2х+1,1х=1,4-2,7
1,3х= -4.1
Х= -4.1 : 1.3
Х=-3.1