Seven subtracted from ten times a number is -37. What is the number?

Answer 1

n = the number

10n - 7 = -37

10n = -37 + 7 = -30

n = -30/10 = -3

Test the answer.

Answer 2

Let "n" be "a number"

The 10 times "a number" is: 10n

Seven subtracted from ten times a number is: 10n - 7

Since seven subtracted from ten times a number is -37, we can say 10n - 7 = -37. Now solve:

10n - 7 = -37

10n = -30

n = -30/10

n = -3

The number is -3