31+x+x+126=135

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Solution for 31+x+x+126=135 equation:


31+x+x+126=135

We simplify the equation to the form, which is simple to understand 
31+x+x+126=135

We move all terms containing x to the left and all other terms to the right. 
+1x+1x=+135-31-126

We simplify left and right side of the equation. 
+2x=-22

We divide both sides of the equation by 2 to get x. 
x=-11

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