Question

Julio says, "If you subtract 17 from my number and multiply the difference by -3, the result is -9." What is Julio's number?

Answer 1

23

Explanation:

Taking an algebraic approach

let the number be n, then (n - 17) is 17 subtracted from the number, and -2(n - 17) = - 12 ( divide both sides by - 2 )n - 17 = 6 ( add 17 to both sides ) which is n=23