8x=21+5x+9

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Solution for 8x=21+5x+9 equation: 



8x=21+5x+9

We move all terms to the left:

8x-(21+5x+9)=0

We add all the numbers together, and all the variables

8x-(5x+30)=0

We get rid of parentheses

8x-5x-30=0

We add all the numbers together, and all the variables

3x-30=0

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

3x=30

x=30/3

x=10

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