12a+4=5a+7

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Solution for 12a+4=5a+7 equation: 



12a+4=5a+7

We move all terms to the left:

12a+4-(5a+7)=0

We get rid of parentheses

12a-5a-7+4=0

We add all the numbers together, and all the variables

7a-3=0

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

7a=3

a=3/7

a=3/7

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