3a-7=25-a

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Solution for 3a-7=25-a equation: 



3a-7=25-a

We move all terms to the left:

3a-7-(25-a)=0

We add all the numbers together, and all the variables

3a-(-1a+25)-7=0

We get rid of parentheses

3a+1a-25-7=0

We add all the numbers together, and all the variables

4a-32=0

We move all terms containing a to the left, all other terms to the right

4a=32

a=32/4

a=8

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