SAT Math Question of the Day

Math Category: Algebra:

Q: If 15x + 9 = 2x - 4, then x =

  1. -2
  2. -1
  3. 0
  4. 1
  5. 2

UNANSWERED.

The correct answer is B.

A: The answer is -1.

15x + 9 = 2x - 4
13x + 9 = -4
13x = -13
x = -1