5a-7+7a-9=180

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Solution for 5a-7+7a-9=180 equation: 



5a-7+7a-9=180

We move all terms to the left:

5a-7+7a-9-(180)=0

We add all the numbers together, and all the variables

12a-196=0

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

12a=196

a=196/12

a=16+1/3

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