3x+100=300-5x

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Solution for 3x+100=300-5x equation: 



3x+100=300-5x

We move all terms to the left:

3x+100-(300-5x)=0

We add all the numbers together, and all the variables

3x-(-5x+300)+100=0

We get rid of parentheses

3x+5x-300+100=0

We add all the numbers together, and all the variables

8x-200=0

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

8x=200

x=200/8

x=25

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