12x+400=20x+500

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Solution for 12x+400=20x+500 equation: 



12x+400=20x+500

We move all terms to the left:

12x+400-(20x+500)=0

We get rid of parentheses

12x-20x-500+400=0

We add all the numbers together, and all the variables

-8x-100=0

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

-8x=100

x=100/-8

x=-12+1/2

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