3a-5a=-28

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Solution for 3a-5a=-28 equation: 



3a-5a=-28

We move all terms to the left:

3a-5a-(-28)=0

We add all the numbers together, and all the variables

-2a+28=0

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

-2a=-28

a=-28/-2

a=+14

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