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Q: What is the sum of 15 and 7 times a number equals 99?

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The sum of 45 and 15 equals 60. 15 x 3 equals 45.

Let the number be x and if 9+2x = 15 then x equals 3

five times the sum of a number and 8 is -15.

No because two plus 15 equals 17

The common number is 3. 3 times 3 equals 9 3 times 5 equals 15

15 and -4

15 times 14 equals 210

6 and 9. If you take 6 and multiply it times 3, it is 18. If you take 9 and multiply it times 2, it equals 18.

How about: 3*5 = 15 as a product of its prime factors

It is: 15 times 15 = 225

It is 5/3 times 9 equals 15

2*(n+15) = 6n

The cubed root of 15 is irrational; it is approx 2.466

15 x 16

The answer is 27. 10+15=25. 25+2=27.

(-15) + 23 = 8

15 times 15 equals 225.

27

- 15. .__.

3*(n + 5) or 3n + 15

15-3 times 2 equals 15-6 equals 9.

The two numbers that solve this problem are 5 and 15. The sum of 5 and 15 is equal to 20, and 15 is indeed 3 times 5.

(1+15)*15/2first plus last times number of numbers then divide by two

Divid your number by 4 then times that number by 3 eg. 20 divide 4 equals 5 5 times 3 equals 15

5*(3+x)=15+5x Fifteen plus five times that number