4a-3=7a-12

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



4a-3=7a-12

We move all terms to the left:

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

We get rid of parentheses

4a-7a+12-3=0

We add all the numbers together, and all the variables

-3a+9=0

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

-3a=-9

a=-9/-3

a=+3

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