9x-4x+1=3x+21

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Solution for 9x-4x+1=3x+21 equation: 



9x-4x+1=3x+21

We move all terms to the left:

9x-4x+1-(3x+21)=0

We add all the numbers together, and all the variables

5x-(3x+21)+1=0

We get rid of parentheses

5x-3x-21+1=0

We add all the numbers together, and all the variables

2x-20=0

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

2x=20

x=20/2

x=10

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