Решите уравнения 8-5(2х-3)=13-6х и еще 1-7(4+2х)=-9-4х

Question

Решите уравнения 8-5(2х-3)=13-6х и еще 1-7(4+2х)=-9-4х

Answer 1

8-5(2x-3)=13-6x
8-10x+15=13-6x
23-10x=13-6x
6x-10x=13-23
-4x=-10
4x=10
x=10:4
x=2.5

1-7(4+2x)=-9-4x
1-28-14x=-9-14x
-27-14x=-9-4x
4x-14x=-9+27
-10x=18
10x=-18
x=18:10
x=1.8