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-x-1=2(4x-5)
We move all terms to the left:
-x-1-(2(4x-5))=0
We add all the numbers together, and all the variables
-1x-(2(4x-5))-1=0
We calculate terms in parentheses: -(2(4x-5)), so:We get rid of parentheses
2(4x-5)
We multiply parentheses
8x-10
Back to the equation:
-(8x-10)
-1x-8x+10-1=0
We add all the numbers together, and all the variables
-9x+9=0
We move all terms containing x to the left, all other terms to the right
-9x=-9
x=-9/-9
x=1
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