Question

Peter says, "If you subtract 19 from my number and multiply the difference by - 7, the result is

- 140." What is Peter's number?
Peter's number is

Answer 1

I think the answer would be 39

Answer 2

39

Explanation:

His number is x.

"If you subtract 19 from my number"

x - 19

"and multiply the difference by - 7"

-7(x - 19)

"the result is -140."

-7(x - 19) = -140

Divide both sides by -7.

x - 19 = 20

Add 19 to both sides.

x = 39

Answer: The number is 39.