40x+120=920

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Solution for 40x+120=920 equation: 



40x+120=920

We move all terms to the left:

40x+120-(920)=0

We add all the numbers together, and all the variables

40x-800=0

We move all terms containing x to the left, all other terms to the right

40x=800

x=800/40

x=20

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