2x+[-5-x]=20

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Solution for 2x+[-5-x]=20 equation:


2x + [-5-x] =20 

We simplify the equation to the form, which is simple to understand 
2x+(-5-x)=20

Remove unnecessary parentheses
+2x-5-x=+20

We move all terms containing x to the left and all other terms to the right. 
+2x-1x=+20+5

We simplify left and right side of the equation. 
+1x=+25

We divide both sides of the equation by 1 to get x. 
x=25

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