4x-5+2x=13+9x=21

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Solution for 4x-5+2x=13+9x=21 equation: 



4x-5+2x=13+9x=21

We move all terms to the left:

4x-5+2x-(13+9x)=0

We add all the numbers together, and all the variables

4x+2x-(9x+13)-5=0

We add all the numbers together, and all the variables

6x-(9x+13)-5=0

We get rid of parentheses

6x-9x-13-5=0

We add all the numbers together, and all the variables

-3x-18=0

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

-3x=18

x=18/-3

x=-6

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