180-x=40+3(90-x)

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Solution for 180-x=40+3(90-x) equation:


180-x=40+3(90-x)

We simplify the equation to the form, which is simple to understand 
180-x=40+3(90-x)

Reorder the terms in parentheses
180-x=40+(+270-3x)

Remove unnecessary parentheses
+180-x=+40+270-3x

We move all terms containing x to the left and all other terms to the right. 
-1x+3x=+40+270-180

We simplify left and right side of the equation. 
+2x=+130

We divide both sides of the equation by 2 to get x. 
x=65

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