8x-4x=3x+21

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Solution for 8x-4x=3x+21 equation: 



8x-4x=3x+21

We move all terms to the left:

8x-4x-(3x+21)=0

We add all the numbers together, and all the variables

4x-(3x+21)=0

We get rid of parentheses

4x-3x-21=0

We add all the numbers together, and all the variables

x-21=0

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

x=21

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