(x-1)+(2x+1)=90

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Solution for (x-1)+(2x+1)=90 equation:


(x-1)+(2x+1)=90

We simplify the equation to the form, which is simple to understand 
(x-1)+(2x+1)=90

Remove unnecessary parentheses
x-1+(2x+1)=90

Remove unnecessary parentheses
+x-1+2x+1=+90

We move all terms containing x to the left and all other terms to the right. 
+1x+2x=+90+1-1

We simplify left and right side of the equation. 
+3x=+90

We divide both sides of the equation by 3 to get x. 
x=30

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