8a+4=-28

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Solution for 8a+4=-28 equation: 



8a+4=-28

We move all terms to the left:

8a+4-(-28)=0

We add all the numbers together, and all the variables

8a+32=0

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

8a=-32

a=-32/8

a=-4

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