# Combining Like Terms and Solving

Simplify each equation by combining like terms, then solve.

Click “Show Answer” underneath the problem to see the answer. Or click the “Show Answers” button at the bottom of the page to see all the answers at once.

If you need assistance with a particular problem, click the “step-by-step” link for an in depth solution.

## Example:

`Equation: x + 2x = 5 + 10`
`Answer: x = 5`

## Quiz:

1. `Equation: 6x - 2 + 2x = -2 + 4x + 8`
`Answer: x = 2`

2. `Equation: -6 + 2x + 3x = 29`
`Answer: x = 7`

3. `Equation: 100x+ -89x = 121`
`Answer: x = 11`

4. `Equation: 10x+5+0=-2x - 3x+80`
`Answer: x = 5`

5. `Equation: 0x+7+5x=2x+30+40`
`Answer: x = 21`

6. `Equation: -11+10x+11-33=x+2x+100`
`Answer: x = 19`

7. `Equation: 10 + 20x-10=15x-5x+90`
`Answer: x = 9`

8. `Equation: 5x+9+5x=30+7x+15+15`
`Answer: x = 17`

9. `Equation: 99 + 5x = 2000 - 5x - 911`
`Answer: x = 99`

10. `Equation: 10x + 3x = 100 + 69`
`Answer: x = 13`

11. `Equation: x + 2 + 2 + 5x = 19 + x + 5`
`Answer: x = 4`

12. `Equation: x + 3 + x + 4 = x + 7 + 2x + 7`
`Answer: x = -7`

13. `Equation: 3 + 4x + 10 = 5x`
`Answer: x = 13`

14. `Equation: -x - 7 = 5x - 11 - 7x`
`Answer: x = -4`

15. `Equation: y + 2x - y = 18`
`Answer: x = 9`

16. `Equation: 2y - y - y + x = -13`
`Answer: x = -13`

17. `Equation: -6 + 13 - 7 = -2x`
`Answer: x = 0`

18. `Equation: -2 + 8 = -5x + 7 + 4`
`Answer: x = 1`

19. `Equation: -7 + x + 4 + 4x = x - 3 + 6 + 3x`
`Answer: x = 6`

20. `Equation: x + 7x = 56 + 8`
`Answer: x = 8`

## Related Pages

Combining Like Terms Lessons

Brush up on your knowledge of the techniques needed to solve problems on this page.

## Tutoring

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