3(x+7)-3=21

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Solution for 3(x+7)-3=21 equation: 



3(x+7)-3=21

We move all terms to the left:

3(x+7)-3-(21)=0

We add all the numbers together, and all the variables

3(x+7)-24=0

We multiply parentheses

3x+21-24=0

We add all the numbers together, and all the variables

3x-3=0

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

3x=3

x=3/3

x=1

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