4x+18=1x+21

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Solution for 4x+18=1x+21 equation: 



4x+18=1x+21

We move all terms to the left:

4x+18-(1x+21)=0

We add all the numbers together, and all the variables

4x-(x+21)+18=0

We get rid of parentheses

4x-x-21+18=0

We add all the numbers together, and all the variables

3x-3=0

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

3x=3

x=3/3

x=1

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