5(x-1)=9x-21

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Solution for 5(x-1)=9x-21 equation: 



5(x-1)=9x-21

We move all terms to the left:

5(x-1)-(9x-21)=0

We multiply parentheses

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

We get rid of parentheses

5x-9x+21-5=0

We add all the numbers together, and all the variables

-4x+16=0

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

-4x=-16

x=-16/-4

x=+4

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