7x+20=200-2x

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Solution for 7x+20=200-2x equation:



7x+20=200-2x
We move all terms to the left:
7x+20-(200-2x)=0
We add all the numbers together, and all the variables
7x-(-2x+200)+20=0
We get rid of parentheses
7x+2x-200+20=0
We add all the numbers together, and all the variables
9x-180=0
We move all terms containing x to the left, all other terms to the right
9x=180
x=180/9
x=20

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