4a-7=12

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Solution for 4a-7=12 equation: 



4a-7=12

We move all terms to the left:

4a-7-(12)=0

We add all the numbers together, and all the variables

4a-19=0

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

4a=19

a=19/4

a=4+3/4

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