2x+100+x=300

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Solution for 2x+100+x=300 equation: 



2x+100+x=300

We move all terms to the left:

2x+100+x-(300)=0

We add all the numbers together, and all the variables

3x-200=0

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

3x=200

x=200/3

x=66+2/3

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