Question

Problem #3 I am thinking of a number. If I... ...multiply by - 4 ...then subtract 5 ...I get 19 What is my number?

Answer 1

My number is -6

Let the number I am thinking of be x

If I multiply by -4 (-4 * x = -4x)

Then subtract 5 ; -4x-5

My result is 19;

-4x - 5 = 19

We proceed to solve this equation so as to get the value of x which is the unknown number.

Thus;

-4x = 19 + 5

-4x = 24

x = 24/-4

x = -6