Question

63 less than four times a number is equal to the number. What is the number?

Answer 1

21

Explanation:

4x - 63 =x

-63=-3x

-63/-3=x

21=x

Answer 2

x = a number

4x - 63 = x

Subtract 4x from both sides.

-63 = -3x

Divide both sides by -3

21 = x