7(a+1)-3a=5+4

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Solution for 7(a+1)-3a=5+4 equation: 



7(a+1)-3a=5+4

We move all terms to the left:

7(a+1)-3a-(5+4)=0

We add all the numbers together, and all the variables

7(a+1)-3a-9=0

We add all the numbers together, and all the variables

-3a+7(a+1)-9=0

We multiply parentheses

-3a+7a+7-9=0

We add all the numbers together, and all the variables

4a-2=0

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

4a=2

a=2/4

a=1/2

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