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(2x+1)+(x-1)=0
We simplify the equation to the form, which is simple to understand
(2x+1)+(x-1)=0
Remove unnecessary parentheses
2x+1+(x-1)=0
Remove unnecessary parentheses
+2x+1+x-1=0
We move all terms containing x to the left and all other terms to the right.
+2x+1x=0-1+1
We simplify left and right side of the equation.
+3x=0
We divide both sides of the equation by 3 to get x.
x=0
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