3(q-10)=21

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Solution for 3(q-10)=21 equation: 



3(q-10)=21

We move all terms to the left:

3(q-10)-(21)=0

We multiply parentheses

3q-30-21=0

We add all the numbers together, and all the variables

3q-51=0

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

3q=51

q=51/3

q=17

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