4(2a+1)-9a=7

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Solution for 4(2a+1)-9a=7 equation: 



4(2a+1)-9a=7

We move all terms to the left:

4(2a+1)-9a-(7)=0

We add all the numbers together, and all the variables

-9a+4(2a+1)-7=0

We multiply parentheses

-9a+8a+4-7=0

We add all the numbers together, and all the variables

-1a-3=0

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

-a=3

a=3/-1

a=-3

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