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Solve 3(a + 3) – 6 = 21. Write a reason for each step.

User Trix
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2 Answers

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14 votes
Your answer is a=6 and why is on this paper
User RonK
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14 votes

Answer:

Explanation:

3(a+3)-6=21

<=>3a+9-6=21

<=>3a+3=21

<=>3a=18

<=>a=6

User Pbespechnyi
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