Linear Equations
2x + 13 = 13
what is 0
21 + 13a = 8a - 5
what is 26/5
3x+15=21
what is 2
13 + 3a = 9a - 7
what is 10/3
5x + 5 = 9
what is 4/5
21 + 6a = 7a - 3
what is 24
2x - 9 = 12
what is 21/2
16-2t=5t+9
What is 1
2x - 75 = 99
87
5 + 14a = 9a - 5
-2