5a-8=57

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Solution for 5a-8=57 equation: 



5a-8=57

We move all terms to the left:

5a-8-(57)=0

We add all the numbers together, and all the variables

5a-65=0

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

5a=65

a=65/5

a=13

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