4x+2x-5x+12=42

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Solution for 4x+2x-5x+12=42 equation: 



4x+2x-5x+12=42

We move all terms to the left:

4x+2x-5x+12-(42)=0

We add all the numbers together, and all the variables

x-30=0

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

x=30

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