225+45x=400+20x

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Solution for 225+45x=400+20x equation: 



225+45x=400+20x

We move all terms to the left:

225+45x-(400+20x)=0

We add all the numbers together, and all the variables

45x-(20x+400)+225=0

We get rid of parentheses

45x-20x-400+225=0

We add all the numbers together, and all the variables

25x-175=0

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

25x=175

x=175/25

x=7

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