Question

f the measure of angle "CEB" is equal to 8x-6, solve for x.

Answer 1

What kind of angle is CEB?

Answer 2

Right?

Answer 3

Correct. And how many degrees is a right angle?
\(<CEB=8x-6=?°\)

Answer 4

If you're saying 90 is the answer, I have tried it and it's told me the answer was wrong :(

Answer 5

Hmm, that's odd... they haven't given any hints otherwise for the possible angle measurement.

Answer 6

And seeing as AB is perpendicular to CD it *should* be a right angle...

Answer 7

@mathmate could you perhaps assist in this? I'm lost, sorry

Answer 8

I went ahead and tried it again, and it went ahead and told me X=12?

Answer 9

Eh... that's weird

Answer 10

Because that gets you 90 ?

Answer 11

Wait... did you put 90 for x? e_e

Answer 12

You need to solve for x, not for the measure of the angle.

Answer 13

You are correct that the measure of angle CEB is 90 since you correctly stated that angle CEB is a right angle.

Answer 14

Now set the expression that the measure of angle CEB equals, 8x - 6 equal to 90, and solve for x.

\(8x - 6 = 90\)

Solve the equation for x.

Answer 15

@shandadiane12
Whenever you have queries about an incorrect answer, I suggest you post the answer you actually gave the computer. Otherwise there could be lots of misunderstandings.
Also, when you solve a problem, provide the details on how you solved it.
@kittiwitti1
suggested you solve
8x-6=90 degrees.
So did you solve for x, and what did you get?
Did you just put 90 as the answer?
Perhaps that's where the problem is.

Answer 16

↑

Answer 17

Established facts are:

1. the angle CEB is 90° (due to perpendicular lines intersecting)
2. the angle CEB also equals 8x-6

Conclusion: angle CEB is this -\[90°=8x-6\]

Answer 18

The important thing is to realize what the problem is asking for.
In this case, it asks for the value of x, not the measure of angle CEB.

Answer 19

@kittiwitti1
That is correct.
Now just solve the equation for x.

Answer 20

I did post what I gave the computer.
which was 90.
it wasn't the right answer.
The lesson went ahead and told me the answer was x=12. Not 90.

Answer 21

@mathstudent55
@kittiwitti1 is not the OP, @shandadiane12 is the OP!

Answer 22

I'm just confused on how the answer was 12? I suck a geometry in general, so "easy math" is so confusing.

Answer 23

It's algebra. If \(x=12\) then you would have the equation \(8(x)-6\) which becomes \(8(12)-6=96-6=6.\)

LOL @mathmate and @mathstudent55

Answer 24

@shandadiane12
What is the problem asking for?
Did you read it carefully?

Answer 25

@shandadiane12
You were asked:
`Correct. And how many degrees is a right angle?`
`<CEB=8x−6=?°`
so you have correctly answered 90 degrees for the right-hand side of the equation.
But as @mathstudent55 said, the question is asking you for the value of x.

Do not hesitate to communicate in complete sentences. This will avoid a lot of misunderstandings.

Answer 26

Oops, 96-6 is 90. I slipped up

Answer 27

\(\large \bf If ~the ~measure ~of ~angle ~CEB~is ~equal ~to ~8x-6,\)
\(\LARGE \bf \color{red}{solve ~for ~x.}\)

Answer 28

1. The measure of angle CEB is equal to 8x - 6.
2. Lines AB and CD are perpendicular.
3. Angle CEB is a right angle.
4. The measure of a right angle is 90.
5. 8x - 6 must equal 90
6. Solve the equation 8x - 6 = 90 for x.