5a-2=-7

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Solution for 5a-2=-7 equation: 



5a-2=-7

We move all terms to the left:

5a-2-(-7)=0

We add all the numbers together, and all the variables

5a+5=0

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

5a=-5

a=-5/5

a=-1

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