7a+3=a+99

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Solution for 7a+3=a+99 equation: 



7a+3=a+99

We move all terms to the left:

7a+3-(a+99)=0

We get rid of parentheses

7a-a-99+3=0

We add all the numbers together, and all the variables

6a-96=0

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

6a=96

a=96/6

a=16

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