3 years ago

Three times a certain number is 21. What is the number?

Mathematics

2 answers:

Goshia [24]3 years ago

7 0

Answer:

The answer is 7

Step-by-step explanation:

an easier way to think of it is 21 divided by 3, which again, is 7.

Hope That Helps!

saveliy_v [14]3 years ago

6 0

Answer:

Step-by-step explanation:

Let x be the unknown number

times is multiply and is means equals

3x = 21

Divide each side by 3

3x/3 = 21/3

x = 7

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