x+x=-78

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Solution for x+x=-78 equation:


x+x=-78

We simplify the equation to the form, which is simple to understand 
x+x=-78

We move all terms containing x to the left and all other terms to the right. 
+1x+1x=-78

We simplify left and right side of the equation. 
+2x=-78

We divide both sides of the equation by 2 to get x. 
x=-39

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