400+50x=1200-30x

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Solution for 400+50x=1200-30x equation:



400+50x=1200-30x
We move all terms to the left:
400+50x-(1200-30x)=0
We add all the numbers together, and all the variables
50x-(-30x+1200)+400=0
We get rid of parentheses
50x+30x-1200+400=0
We add all the numbers together, and all the variables
80x-800=0
We move all terms containing x to the left, all other terms to the right
80x=800
x=800/80
x=10

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