Question

Forty-five less than twice a number is five times that number . What is the number ?

Answer 1

The answer is -15.

2n-45=5n
-2n -2n
——————-

-45=3n
—- —-
3 3

-15=n

2(-15)-45=5(-15)

-30-45=-75

-75=-75

Answer 2

2n=5n-45

3n=45

the number is 15