100+5x=300-7x

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Solution for 100+5x=300-7x equation: 



100+5x=300-7x

We move all terms to the left:

100+5x-(300-7x)=0

We add all the numbers together, and all the variables

5x-(-7x+300)+100=0

We get rid of parentheses

5x+7x-300+100=0

We add all the numbers together, and all the variables

12x-200=0

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

12x=200

x=200/12

x=16+2/3

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