4x+9+6x=5x-21

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Solution for 4x+9+6x=5x-21 equation: 



4x+9+6x=5x-21

We move all terms to the left:

4x+9+6x-(5x-21)=0

We add all the numbers together, and all the variables

10x-(5x-21)+9=0

We get rid of parentheses

10x-5x+21+9=0

We add all the numbers together, and all the variables

5x+30=0

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

5x=-30

x=-30/5

x=-6

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