1+3x=43+x

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Solution for 1+3x=43+x equation: 



1+3x=43+x

We move all terms to the left:

1+3x-(43+x)=0

We add all the numbers together, and all the variables

3x-(x+43)+1=0

We get rid of parentheses

3x-x-43+1=0

We add all the numbers together, and all the variables

2x-42=0

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

2x=42

x=42/2

x=21

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