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17-18b=-2(9b-10)
We move all terms to the left:
17-18b-(-2(9b-10))=0
We calculate terms in parentheses: -(-2(9b-10)), so:We get rid of parentheses
-2(9b-10)
We multiply parentheses
-18b+20
Back to the equation:
-(-18b+20)
-18b+18b-20+17=0
We add all the numbers together, and all the variables
-3!=0
There is no solution for this equation
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