8-7a=2a-1

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Solution for 8-7a=2a-1 equation: 



8-7a=2a-1

We move all terms to the left:

8-7a-(2a-1)=0

We get rid of parentheses

-7a-2a+1+8=0

We add all the numbers together, and all the variables

-9a+9=0

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

-9a=-9

a=-9/-9

a=1

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