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2(1-x)=5(2x+1)
We move all terms to the left:
2(1-x)-(5(2x+1))=0
We add all the numbers together, and all the variables
2(-1x+1)-(5(2x+1))=0
We multiply parentheses
-2x-(5(2x+1))+2=0
We calculate terms in parentheses: -(5(2x+1)), so:We get rid of parentheses
5(2x+1)
We multiply parentheses
10x+5
Back to the equation:
-(10x+5)
-2x-10x-5+2=0
We add all the numbers together, and all the variables
-12x-3=0
We move all terms containing x to the left, all other terms to the right
-12x=3
x=3/-12
x=-1/4
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