X=+6+4x-21

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Solution for X=+6+4x-21 equation: 



X=+6+4X-21

We move all terms to the left:

X-(+6+4X-21)=0

We add all the numbers together, and all the variables

X-(4X-15)=0

We get rid of parentheses

X-4X+15=0

We add all the numbers together, and all the variables

-3X+15=0

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

-3X=-15

X=-15/-3

X=+5

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