400+5x=18x+7x

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Solution for 400+5x=18x+7x equation: 



400+5x=18x+7x

We move all terms to the left:

400+5x-(18x+7x)=0

We add all the numbers together, and all the variables

5x-(+25x)+400=0

We get rid of parentheses

5x-25x+400=0

We add all the numbers together, and all the variables

-20x+400=0

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

-20x=-400

x=-400/-20

x=+20

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