Question

When the sum of a number and 7 is multiplied by 5, the result is 20 what is the number

Answer 1

Hello from MrBillDoesMath!

Answer:

-3

Discussion:

Call the number "n". Then

(n+7) * 5 = 20 => (given)

(n+7) = 20 * (1/5) = 4 => (divide both sides by 5)

n = 4 - 7 = -3 (subtract 7 from both sides)

Regards,

MrB