X+9=40-20x

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Solution for X+9=40-20x equation:



X+9=40-20X
We move all terms to the left:
X+9-(40-20X)=0
We add all the numbers together, and all the variables
X-(-20X+40)+9=0
We get rid of parentheses
X+20X-40+9=0
We add all the numbers together, and all the variables
21X-31=0
We move all terms containing X to the left, all other terms to the right
21X=31
X=31/21
X=1+10/21

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