-1+8a=10-31

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Solution for -1+8a=10-31 equation: 



-1+8a=10-31

We move all terms to the left:

-1+8a-(10-31)=0

We add all the numbers together, and all the variables

8a-1-(-21)=0

We add all the numbers together, and all the variables

8a+20=0

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

8a=-20

a=-20/8

a=-2+1/2

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