1. x=-6+12 = 6
2. x=5+15 = 20
3.x =-13-4= -17
4. -x= -3-6 = -9
x=9
5. 2x = -10-4
2x = -14
x =-14/2 =-7
6. -18x=6+2
-18x =8
x=8+18 = 26
7. 20x =-2+4
20x =2
x=2/20 =1/10
8. 8x -4 =-2
8x = -2+4
8x =2
x =2/8 = 1/4
9. -6x - 8 =-2
-6x = -2+8
-6X = 6
X = 6/-6 = 1/-1
10. -X - 3 =-10
-X = -10 +3
-x = -7
x = 7