3x+300=900

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Solution for 3x+300=900 equation: 



3x+300=900

We move all terms to the left:

3x+300-(900)=0

We add all the numbers together, and all the variables

3x-600=0

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

3x=600

x=600/3

x=200

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