77+x+x+42+65=180

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Solution for 77+x+x+42+65=180 equation:


77+x+x+42+65=180

We simplify the equation to the form, which is simple to understand 
77+x+x+42+65=180

We move all terms containing x to the left and all other terms to the right. 
+1x+1x=+180-77-42-65

We simplify left and right side of the equation. 
+2x=-4

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

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