Arturo O. answered 09/21/17
Tutor
5.0
(66)
Experienced Physics Teacher for Physics Tutoring
Sum of a number and 3:
x + 3
Product of -2 and the sum of a number and 3:
-2(x + 3)
Product of -2 and the sum of a number and 3 is at least 0:
-2(x + 3) ≥ 0