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-2b+5(1+2b)=7+8b
We move all terms to the left:
-2b+5(1+2b)-(7+8b)=0
We add all the numbers together, and all the variables
-2b+5(2b+1)-(8b+7)=0
We multiply parentheses
-2b+10b-(8b+7)+5=0
We get rid of parentheses
-2b+10b-8b-7+5=0
We add all the numbers together, and all the variables
-2!=0
There is no solution for this equation
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