-40+30x=450-10x+20x

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Solution for -40+30x=450-10x+20x equation: 



-40+30x=450-10x+20x

We move all terms to the left:

-40+30x-(450-10x+20x)=0

We add all the numbers together, and all the variables

30x-(10x+450)-40=0

We get rid of parentheses

30x-10x-450-40=0

We add all the numbers together, and all the variables

20x-490=0

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

20x=490

x=490/20

x=24+1/2

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