(180-8x)+(180-9x)+5x=180

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Solution for (180-8x)+(180-9x)+5x=180 equation:



(180-8x)+(180-9x)+5x=180
We move all terms to the left:
(180-8x)+(180-9x)+5x-(180)=0
We add all the numbers together, and all the variables
(-8x+180)+(-9x+180)+5x-180=0
We add all the numbers together, and all the variables
5x+(-8x+180)+(-9x+180)-180=0
We get rid of parentheses
5x-8x-9x+180+180-180=0
We add all the numbers together, and all the variables
-12x+180=0
We move all terms containing x to the left, all other terms to the right
-12x=-180
x=-180/-12
x=+15

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