7a+9=5a+13

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Solution for 7a+9=5a+13 equation: 



7a+9=5a+13

We move all terms to the left:

7a+9-(5a+13)=0

We get rid of parentheses

7a-5a-13+9=0

We add all the numbers together, and all the variables

2a-4=0

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

2a=4

a=4/2

a=2

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