4x+3x-1=21x+13

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Solution for 4x+3x-1=21x+13 equation: 



4x+3x-1=21x+13

We move all terms to the left:

4x+3x-1-(21x+13)=0

We add all the numbers together, and all the variables

7x-(21x+13)-1=0

We get rid of parentheses

7x-21x-13-1=0

We add all the numbers together, and all the variables

-14x-14=0

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

-14x=14

x=14/-14

x=-1

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