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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

a+2a-(4a-7)-9=0

We add all the numbers together, and all the variables

3a-(4a-7)-9=0

We get rid of parentheses

3a-4a+7-9=0

We add all the numbers together, and all the variables

-1a-2=0

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

-a=2

a=2/-1

a=-2

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