7a+5+2a+13=180

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Solution for 7a+5+2a+13=180 equation: 



7a+5+2a+13=180

We move all terms to the left:

7a+5+2a+13-(180)=0

We add all the numbers together, and all the variables

9a-162=0

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

9a=162

a=162/9

a=18

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