Question

Решите уравнение
-6(-5-7х)= -8х+2
9+2(2х+1)=1
4+3(10х+7)= -5
4+5(-3х+7)= -9
5+10(-10х-9)= -3

Answer 1

-6(-5-7х)= -8х+2
30+35х=-8х+2
35х+8х=2-30
43х=-28
х=-28:(43)
х=-2843

9+2(2х+1)=1
9+4х+2=1
4х=1-11
х=-10:4
х=-104
х=-2 12

4+3(10х+7)= -5
4+30х+21=-5
30х=-5-25
30х=-30
х=-30:30
х=-1

4+5(-3х+7)= -9
4-15х+35=-9
-15х=-9-39
-15х=-30
х=-30:(-15)
х=2

5+10(-10х-9)= -3
5-100х-90=-3
-100х=-3-5+90
-100х=82
х=82:(-100)
х=-82100
х=-8 2100
х=-8 150

Answer 2

Спасибо)