4x+5x+12=30

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Solution for 4x+5x+12=30 equation: 



4x+5x+12=30

We move all terms to the left:

4x+5x+12-(30)=0

We add all the numbers together, and all the variables

9x-18=0

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

9x=18

x=18/9

x=2

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