Question

Need help understanding 5-10 8th grade math questions.

Answer 1

Post ONE question per post what is the question

Answer 2

Yes, ok, here is one...

Answer 3

How many solutions does the equation 4x + 8 = −2 − 2 + 5x have? 
-One 
-None 
-Infinitely many

Answer 4

weell combine the like terms

Answer 5

So if I just solve it, I can get the answer? I didn't know if there was an easier way.

Answer 6

well solve it then i will show u the trick :)

Answer 7

Okey-dokey, give me a second...

Answer 8

Ok so when a solution has the same number equaling the same number it will be infinite solutions example: 0=0

If a solution has 2 different numbers equaling each other it will be no solution such as: 0=1

One solution means ONE SOLUTION like this : X=6

Answer 9

Ok, thank you very much, I got 1 solution for the question, is that correct?

Answer 10

yep :) good job!

Answer 11

Ok. All the questions are that way so now that I understand I don't need anymore help! Thank you so very much!!

Answer 12

lol im glad i can help! :D

Answer 13

Actually, @kidrah69, I have a question about your reply.

Answer 14

This is the one I have a question about @kidrah69 -->
Ok so when a solution has the same number equaling the same number it will be infinite solutions EXAMPLE: 0=0

If a solution has 2 different numbers equaling each other it will be no solution such as: 0=1

One solution means ONE SOLUTION like this : X=6

Answer 15

You say in the first 2 when a certain #=#, that will tell you how many solutions there will be. But in the equations I am doing, x=a certain #. Can you please explain @kidrah69 ?

Answer 16

all of them?

Answer 17

just where you say your examples like 0=0 or 0=1. How is there a # instead of a x?

Answer 18

Oh ok let me show you an example :)

Answer 19

ok!

Answer 20

i hope that clears it up :)

Answer 21

Ooohhhh, Ok! Can you check a few for me?

Answer 22

It's just 4 of this topic @kidrah69

Answer 23

sure :)

Answer 24

Ok, thanks! Here's the first one...
How many solutions does the equation 5m − 5m − 12 = 14 − 2 have?
Zero
One -this one?
Two

Answer 25

\[ 5m − 5m − 12 = 14 − 2 \]
\[0m − 12 =12\]
add 12 to both sides
\[0m=24\]
divide
\[m=24\] correct :)

Answer 26

Thanks! Here is #2...

Answer 27

Which statement is true about the equation 4.5z = 4.5z − 6.25 + 6.25? 
  It has one solution. 
 It has two solutions. 
  It has infinitely many solutions. 
a?

Answer 28

can you repost this its lagging for me

Answer 29

ok

Answer 30

Which statement is true about the equation 4.5z = 4.5z − 6.25 + 6.25? 
 It has one solution.-------this one? 
 It has two solutions.  
It has infinitely many solutions. 

Answer 31

\[4.5z = 4.5z − 6.25 + 6.25 \]
\[ 4.5z = 4.5z − 6.25 + 6.25~combine~like~terms\]
z=8.5 yep thats right

Answer 32

Ok!! here is the last one I believe...

Answer 33

How many solutions does the equation −4y + 4y + 2 = 2 have?
 Two
 None----this one?
 Infinitely many

Answer 34

0=0 so which is it? and are these test questions?

Answer 35

It should be infinitely, my mistake. And it was a pre-test, I got these questions wrong and wanted to study and learn the correctly before the actual test. So don't worry @kidrah69 , you're not helping me cheat!!