21(x-1)+9=9(x-1+9

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



21(x-1)+9=9(x-1+9

We move all terms to the left:

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

We add all the numbers together, and all the variables

21(x-1)-(9(x+8)+9=0

We multiply parentheses

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

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