7a-4=12-3a

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Solution for 7a-4=12-3a equation: 



7a-4=12-3a

We move all terms to the left:

7a-4-(12-3a)=0

We add all the numbers together, and all the variables

7a-(-3a+12)-4=0

We get rid of parentheses

7a+3a-12-4=0

We add all the numbers together, and all the variables

10a-16=0

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

10a=16

a=16/10

a=1+3/5

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