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-(2x-1)=4
We simplify the equation to the form, which is simple to understand
-(2x-1)=4
Remove unnecessary parentheses
-2x+1=4
We move all terms containing x to the left and all other terms to the right.
-2x=+4-1
We simplify left and right side of the equation.
-2x=+3
We divide both sides of the equation by -2 to get x.
x=-1.5
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