Question

-22 = x - 7

Answer 1

Okay, you want x alone on one side, and the numbers on the other side. What would you add or subtract to make that happen?

Answer 2

subtract 7 from 22

Answer 3

No...you need to add 7 to each to side:

\[-22 = x - 7\]
\[-22 + 7 = x - 7 + 7 = x\]
\[x = -15\]

Answer 4

See how that works?

Answer 5

okay can you tutor me

Answer 6

Isn't that what I'm doing? :-)

Answer 7

yes thats correct. Are u in College

Answer 8

No, I finished with that long ago...

Answer 9

ohhh okay. Well I have a test to take and I really needs some online tutoring

Answer 10

But I like seeing people say "oh, now I get it!" :-)

Answer 11

I can answer one more question, and then I need to go to sleep.

Answer 12

okay, Thanks... I really appreciate your kindness...

Answer 13

I need some tutoring bad due not finishing school from running away from home and not finishing school

Answer 14

Well, I'll watch for your questions when I'm online, and answer them if I can. My goal is to help you understand how to do them so you can do them yourself and be confident that you have found the correct answer.

Answer 15

It feels good to look at a complicated problem and realize that you know how to do it!

Answer 16

y - 10 = 14

Answer 17

Okay, you want to get y all alone on the left. Based on what I've done before, what do you think you need to do here?

Answer 18

Sorry my Computer is acting up. I will place 14 to each side

Answer 19

Mmm...let's think of it a little differently. If you had $7, and I told you I had $5 more than you have, how much money did I have?

Answer 20

5

Answer 21

5 dollars is 5 dollars more than 7 dollars?!?

Answer 22

12

Answer 23

Right. How did you figure that out?

Answer 24

my brain is awake now

Answer 25

(what time is it where you are?)

Answer 26

4:17 am

Answer 27

ah, you're somewhere in the central time zone. I hope you are up really early, not up really, really late :-)

Answer 28

I'm in CA, so it's 2:18 am. But back to my question: how did you figure out that I have $12?

Answer 29

I'm up really late in Dallas... Studying for a GED Math Test....

Answer 30

Let me put some words in your mouth in the interest of getting through this more quickly:

"I added $5 to the $7 I had and that gave me $12"

Answer 31

ok

Answer 32

The equation we were solving with my question is:

x - 5 = 7
You have 7, and the amount I have (x) is 5 more. So to find x, you added 5 to each side of the equation:

x - 5 + 5 = 7 + 5
x = 12

Answer 33

So back to

y - 10 = 14

Now how would you solve it?

Answer 34

ok

Answer 35

a) add 10 to both sides
b) subtract 10 from both sides
c) add 14 to both sides
d) subtract 14 from both sides

Answer 36

Final question on "Who wants to be a millionaire?" and you're all out of lifelines. tick tock tick tock :-)

Answer 37

lol, sorry my computer has quit...
b

Answer 38

If you subtract 10 from sides, here's what you get:

\[y - 10 - 10 = 14 - 10\]
\[y - 20 = 4\]
Did that get you any closer to the answer?

Answer 39

yes i did

Answer 40

I want to say thank you so much

Answer 41

So what is the answer?

Answer 42

y = ?

Answer 43

y =4

Answer 44

I'm so sleepy maybe we can try again tomorrow if i see you again.

Answer 45

Oh, no...

Original equation was y - 10 = 14. If y = 4, then 4 - 10 = 14. That's not true :-(

The right choice was a) add 10 to both sides.

y - 10 = 14
y - 10 + 10 = 14 + 10
y = 24

If you see a minus sign in front of something and you want to get rid of it, you need to add, not subtract.

Answer 46

I will again thanks...

Answer 47

add 7 on both sides :)