400=5x+12

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Solution for 400=5x+12 equation: 



400=5x+12

We move all terms to the left:

400-(5x+12)=0

We get rid of parentheses

-5x-12+400=0

We add all the numbers together, and all the variables

-5x+388=0

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

-5x=-388

x=-388/-5

x=77+3/5

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