3 years ago

Three times the difference of a number and 5 is equal to 12. Which of the following is the number ?

Mathematics

1 answer:

Rufina [12.5K]3 years ago

5 0

Answer:

the answer is D (9)

Step-by-step explanation:

3(n-5)=12

3n-15=12

add 15 on both sides

3n=27

divide both sides by 3

n=9

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