4a-(7a-9)=36

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Solution for 4a-(7a-9)=36 equation: 



4a-(7a-9)=36

We move all terms to the left:

4a-(7a-9)-(36)=0

We get rid of parentheses

4a-7a+9-36=0

We add all the numbers together, and all the variables

-3a-27=0

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

-3a=27

a=27/-3

a=-9

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