4x+3+9=42

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Solution for 4x+3+9=42 equation: 



4x+3+9=42

We move all terms to the left:

4x+3+9-(42)=0

We add all the numbers together, and all the variables

4x-30=0

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

4x=30

x=30/4

x=7+1/2

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