7a+4=4a+25

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Solution for 7a+4=4a+25 equation: 



7a+4=4a+25

We move all terms to the left:

7a+4-(4a+25)=0

We get rid of parentheses

7a-4a-25+4=0

We add all the numbers together, and all the variables

3a-21=0

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

3a=21

a=21/3

a=7

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