300+10x=100

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Solution for 300+10x=100 equation: 



300+10x=100

We move all terms to the left:

300+10x-(100)=0

We add all the numbers together, and all the variables

10x+200=0

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

10x=-200

x=-200/10

x=-20

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