12a-4=-7a=243

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Solution for 12a-4=-7a=243 equation: 



12a-4=-7a=243

We move all terms to the left:

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

We get rid of parentheses

12a+7a-4=0

We add all the numbers together, and all the variables

19a-4=0

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

19a=4

a=4/19

a=4/19

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