30+x+x+3x=360

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Solution for 30+x+x+3x=360 equation: 



30+x+x+3x=360

We move all terms to the left:

30+x+x+3x-(360)=0

We add all the numbers together, and all the variables

5x-330=0

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

5x=330

x=330/5

x=66

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