Question

Solve the inequality.

42 < –6d

A. d < –7

B. d < 36

C. d > –7

D. d < –48

Answer 1

You need to divide both sides by (-6)...

but you also need to remember that with inequalities, when you multiply or divide by a negative number, you have to reverse the direction of the inequality.

Answer 2

so C

Answer 3

close, but not quite...

Original problem:
42 < –6d

Divide each side by (-6) and flip the inequality:
42 / (-6) > (-6d)/(-6)
then simplify by reducing the fractions...
-7 > d
or turned the other way...
d < -7