Question

Write the phrase as an algebraic expression and simplify if possible let x represent the unknown number

The sum of 5 times a number and - 4, added to 7 times the number

Answer 1

12x – 4

Explanation:

The sum of 5 times a number and - 4, added to 7 times the number =

(5x + -4) + 7x →

(5x + -4 + 7x) →

(5x + 7x + -4) →

(5x + 7x) + -4 →

12x + -4 →

12x – 4