Question

Write the following phrase as an algebraic expression. Use x for the unknown number.

The sum of -8 and four times a number.

Answer 1

Answer: -8+4x

Work Shown:

x = unknown number

4x = four times the unknown number

-8+4x = sum of -8 and the previous expression

-8+4x is the same as 4x+(-8) or 4x-8