4x+3=x+42

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



4x+3=x+42

We move all terms to the left:

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

We get rid of parentheses

4x-x-42+3=0

We add all the numbers together, and all the variables

3x-39=0

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

3x=39

x=39/3

x=13

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