7a-13=3

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Solution for 7a-13=3 equation: 



7a-13=3

We move all terms to the left:

7a-13-(3)=0

We add all the numbers together, and all the variables

7a-16=0

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

7a=16

a=16/7

a=2+2/7

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