If 5 is subtracted from three times a number, the result is 16. Find t

1.	If 5 is subtracted from three times a number, the result is 16. Find the number.
Answer» Let the required number be x. Then, given that 5 subtracted from 3 times x i.e. 3x – 5 ⇒ 3x – 5 = 16 Adding 5 to both sides, we get ⇒ 3x – 5 + 5 = 16 + 5 ⇒ 3x = 21 Dividing both sides by 3, we get ⇒ 3x/3 = 21/3 ⇒ x = 7 Thus, the required number is x = 7.

If 5 is subtracted from three times a number, the result is 16. Find the number.

Answer»

Let the required number be x.

Then, given that 5 subtracted from 3 times x i.e. 3x – 5

⇒ 3x – 5 = 16

Adding 5 to both sides, we get

⇒ 3x – 5 + 5 = 16 + 5

⇒ 3x = 21

Dividing both sides by 3, we get

⇒ 3x/3 = 21/3

⇒ x = 7

Thus, the required number is x = 7.