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Addition Equations
Solve the addition equations by using the addition property of equality.
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| A | B |
|---|
| x-4=12 | 16 |
| 4-x=12 | -8 |
| 12=4+x | 8 |
| 12=-4-x | -16 |
| x+3=9 | 6 |
| 3+x=-9 | -12 |
| 9=x-3 | 12 |
| 9=3-x | -6 |
| x+12=3 | -9 |
| x-12=3 | 15 |
| 12-x=3 | 9 |
| -12-x=3 | -15 |
| x-1=1 | 2 |
| 1=x+1 | 0 |
| -1-x=1 | -2 |
| 30=x+20 | 10 |
| x-20=30 | 50 |
| 20-x=30 | -10 |
| 30=-20-x | -50 |
| 2x=20 | 10 |
| 20=-.5x | -40 |
| x/3 = 10 | 30 |
| 3x/4 = 30 | 40 |
| 180=-6x | -30 |
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