Question

Решите уравнения 5-2(3-x)=11;
2x-(7+x)=2; -3-3(3-2x)=1.

Answer 1

5-6+2х=11

2х=11-5+6

2х=12

х=6 

2*x-(7+x) = 2

2*x-7-x = 2

-7 + x = 2

x = 9

-3-3*(3-2*x) = 1

-3-3*3+3*2*x = 1

-12 + 6*x = 1

6*x = 13

6x = 13 / 6

Answer 2

5-2(3-х)=11
5-6-2х=11
-1-2х=11
-2х=10
х=-5