5(x-9)=8x+21

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Solution for 5(x-9)=8x+21 equation: 



5(x-9)=8x+21

We move all terms to the left:

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

We multiply parentheses

5x-(8x+21)-45=0

We get rid of parentheses

5x-8x-21-45=0

We add all the numbers together, and all the variables

-3x-66=0

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

-3x=66

x=66/-3

x=-22

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