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5x+15x-1=4(5x+7)
We move all terms to the left:
5x+15x-1-(4(5x+7))=0
We add all the numbers together, and all the variables
20x-(4(5x+7))-1=0
We calculate terms in parentheses: -(4(5x+7)), so:We get rid of parentheses
4(5x+7)
We multiply parentheses
20x+28
Back to the equation:
-(20x+28)
20x-20x-28-1=0
We add all the numbers together, and all the variables
-29!=0
There is no solution for this equation
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