x+(21+x)+(-23+2x)=690

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Solution for x+(21+x)+(-23+2x)=690 equation:


x+(21+x)+(-23+2x)=690

We simplify the equation to the form, which is simple to understand 
x+(21+x)+(-23+2x)=690

Remove unnecessary parentheses
+x+21+x+(-23+2x+)=+690

Remove unnecessary parentheses
+x+21+x-23+2x=+690

We move all terms containing x to the left and all other terms to the right. 
+1x+1x+2x=+690-21+23

We simplify left and right side of the equation. 
+4x=+692

We divide both sides of the equation by 4 to get x. 
x=173

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