Question

x – 3 ≤ – 12

a. x ≤ –15

b. ≤ – twelve thirds

c. x ≤ 15

d. x ≤ –9

My answer is a. What do you all think? This is an inequalities question by the way.

Answer 1

1. It's obviously inequalities
2. Did you add 3 to both sides?

Answer 2

No, i subtracted 3 from both sides.

Answer 3

Your goal is to isolate x. Subtracting 3 from both sides doesn't accomplish that.

Answer 4

This is a question from my test, i am just seeing if i understand the material enough to actually take it.

Answer 5

It is helping, it is subtracting 3 from both sides, leaving x on one side alone. Adding to that would help how?

Answer 6

You were supposed to add 3 to both sides to begin with.

Answer 7

Look what happens if you subtract 3 from both sides:

x – 3 ≤ – 12

Subtract 3 from both sides:
x – 3 - 3 ≤ - 12 - 3
x - 6 ≤ -15

SUBTRACTING 3 from both sides DOES NOT isolate x. Try ADDING 3 to both sides.

Answer 8

This is overdue, my internet went down. Thank you for the help.

Answer 9

Are you sure you figured it out?

Answer 10

Yea, i got it now. Thanks.