Marla solved the inequality below incorrectly. What mistake did she make?

-5x - 3.5 < 6.5

-5x < 10

x > 2

a

She added 3.5 to both sides when she should have subtracted.

b

She should have divided both sides by negative 5 as her first step.

c

She should not have flipped the inequality symbol in her answer

d

She should have divided 10 by negative 5 and gotten a - 2

Question

Mathematics

Peyton Barber

17 March, 14:27

Marla solved the inequality below incorrectly. What mistake did she make?

-5x - 3.5 < 6.5

-5x < 10

x > 2

a

She added 3.5 to both sides when she should have subtracted.

b

She should have divided both sides by negative 5 as her first step.

c

She should not have flipped the inequality symbol in her answer

d

She should have divided 10 by negative 5 and gotten a - 2

+2

Answers (1)

Know the Answer?

Jordon Klein · Answer 1

Answer : The correct answer should be d.

Step-by-step explanation:

she did everything right except when she divided by regular 5. Marla should have divided by - 5 to get x > - 2.