(20-10x)+(9x)=180

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Solution for (20-10x)+(9x)=180 equation:



(20-10x)+(9x)=180
We move all terms to the left:
(20-10x)+(9x)-(180)=0
We add all the numbers together, and all the variables
(-10x+20)+9x-180=0
We add all the numbers together, and all the variables
9x+(-10x+20)-180=0
We get rid of parentheses
9x-10x+20-180=0
We add all the numbers together, and all the variables
-1x-160=0
We move all terms containing x to the left, all other terms to the right
-x=160
x=160/-1
x=-160

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