100+10x=300-15x

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Solution for 100+10x=300-15x equation: 



100+10x=300-15x

We move all terms to the left:

100+10x-(300-15x)=0

We add all the numbers together, and all the variables

10x-(-15x+300)+100=0

We get rid of parentheses

10x+15x-300+100=0

We add all the numbers together, and all the variables

25x-200=0

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

25x=200

x=200/25

x=8

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