9-2a=-3-4a

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Solution for 9-2a=-3-4a equation: 



9-2a=-3-4a

We move all terms to the left:

9-2a-(-3-4a)=0

We add all the numbers together, and all the variables

-2a-(-4a-3)+9=0

We get rid of parentheses

-2a+4a+3+9=0

We add all the numbers together, and all the variables

2a+12=0

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

2a=-12

a=-12/2

a=-6

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