Question

Which of the following values are solutions to the inequality? Choose all that apply.

5x - 7 < 13
A.3
B.5
C.10
D.-4

Answer 1

A. 5(3) - 7 < 13
15 - 7 < 13
8 < 13

A is a solution to the inequality

B. 5(5) - 7 < 13
25 - 7 < 13
18<13

B does not fit in this inequality. 18 is not bigger than 13.

C. 5(10) - 7 < 13
50 - 7 < 13
43<13

C also does not fit because 10 is too large of a value.

D. 5(-4) - 7 < 13
-20 - 7 < 13
-27<13

D is an answer as the inequality statement is true.

The answers are A & D