4x+(11,8-x)=3,8-5x 3y+2(2y-3)=8-7(y-2) 2-5x=x+14 5(y-7)=3(y-4)-29 11-5y=12-6y решите

4x+(11,8-x)=3,8-5x

3x+11,8=3,8-5x

3x+5x=-11,8+3,8

8x=-8

x=-1

11-5y=12-6y

-5y+6y=-11+12

y=1

3y+2(2y-3)=8-7(y-2)

3y+4y-6=8-7y+14

3y+4y+7y=6+8+14

14y=28

y=2

2-5x=x+14

2-14=5x+x

6x=-12

x=-2

5(y-7)=3(y-4)-29

5y-35=3y-12-29

5y-3y=35-12-29

2y=-6

y=-3