3 years ago

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

Mathematics

2 answers:

kakasveta [241]3 years ago

7 0

Answer:

Step-by-step explanation:

3(a+3)-6=21

<=>3a+9-6=21

<=>3a+3=21

<=>3a=18

<=>a=6

sergeinik [125]3 years ago

7 0

Your answer is a=6 and why is on this paper

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