3+9(x-2)=21

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Solution for 3+9(x-2)=21 equation: 



3+9(x-2)=21

We move all terms to the left:

3+9(x-2)-(21)=0

We add all the numbers together, and all the variables

9(x-2)-18=0

We multiply parentheses

9x-18-18=0

We add all the numbers together, and all the variables

9x-36=0

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

9x=36

x=36/9

x=4

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