Question

-39≤5n+6≤36
help please!

Answer 1

What is needed?

-39≤5n+6≤36

Subtract 6

-45 ≤ 5n ≤ 30

Now what?

Answer 2

subtract 6 from all
-39-6<5n+6-6<36-6
-45<5n<30
divide by 5 each term
-45/5<5n/5<30/5
-9<n<6
equal to sign is there

Answer 3

@FunMedley Please do something besides post links to wolfram.

Answer 4

I have to graph it

Answer 5

Well, then do it. What is preventing you from drawing a number line and marking 6 and -9?

Answer 6

Learn this..
if there is an equal sign, it is a closed circle
if there is no equal sign, open circle
< less then means shading to the left
> greater then means shaded to the right

Answer 7

thanks! I understand it