Question

-2 = 3x + 14 + x
10у +6=12у-8
11z-3=-3 - 12z

Answer 1

-2-14=3х+х
-16=4х
х=-16:4
х=-4
10у-12у=-6-8
-2у=-14
2у=14
у=14:2
у=7
11z+12z=-3+3
23z=0
z=0

Answer 2

1) -2 = 3х + 14 + х;

-2= 4х + 14;

-2 - 4х = 14;

-4х = 14 + 2;

-4х = 16;

х = - 4;

2) 10у + 6 = 12у - 8;

10у - 12у = - 8 - 6;

-2у = - 14;

у = 7;

3) 11z - 3 = -3 - 12z;

11z + 12z= 0;

23z = 0

z = 0