6x+3x=30

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Solution for 6x+3x=30 equation: 



6x+3x=30

We move all terms to the left:

6x+3x-(30)=0

We add all the numbers together, and all the variables

9x-30=0

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

9x=30

x=30/9

x=3+1/3

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