Y=400+7x

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Solution for Y=400+7x equation: 



=400+7Y

We move all terms to the left:

-(400+7Y)=0

We add all the numbers together, and all the variables

-(7Y+400)=0

We get rid of parentheses

-7Y-400=0

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

-7Y=400

Y=400/-7

Y=-57+1/7

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