Question

Complete the following ordered pairs for the equation?
9x + -5y = 60
(-5, _)
(_, -3)
(10, _)

Answer 1

For (-5, _), put x=-5 into the equation.
9(-5) + -5y = 60
Now, solve y and put the value in that blank.

For (_, -3) , put y=-3 into the equation.
9x + -5(-3) = 60
Now, solve x and put the value in that blank.

For (10, _), it's similar to (-5, _).

Answer 2

Can you do it?

Answer 3

I have no idea how to do any of this, so no. lol

Answer 4

For the first one,
9(-5) + -5y = 60
First, what is 9(-5) ?

Answer 5

-45

Answer 6

So, you get
-45 - 5y = 60
Got it so far?

Answer 7

I think so.

Answer 8

Now, add 45 to both sides, what do you get?

Answer 9

Both sides of what...? lol. I'm sorry teaching me math isn't simple. I really don't understand any of it.

Answer 10

Both sides of -45 - 5y = 60

Answer 11

I have no idea what you're talking about... :(

Answer 12

Add 45 to both sides of -45 - 5y = 60:
-45 - 5y +45= 60 + 45
Now, simplify it, what do you get?

Answer 13

-5 and -21? I DON'T KNOW!

Answer 14

What is 60 + 45?

Answer 15

105

Answer 16

What is -45 - 5y +45?

Answer 17

180?

Answer 18

Not really..
-45 - 5y +45 = -45 + 45- 5y = ...?

Answer 19

Ugh, I have no idea... I'm so lost...

Answer 20

That is -45+45?

Answer 21

0

Answer 22

-45 - 5y +45 = -45 + 45- 5y = 0 - 5y = -5y
Agree?

Answer 23

I guess, I don't know what just happened.. I'm sorry.

Answer 24

Do you know what happened now?

Answer 25

Honestly, no. I don't.

Answer 26

Very honest :)
We need to solve the equation :9(-5) + -5y = 60
Since the left side and right side are equal, you can find the value of y.
For example, if you have a equation x+1 = 4, and you need to find x, just think what number plus one is equal to four. And that number is x. Got this example?

Answer 27

Yeah I understand that one. It would be 3 right?

Answer 28

Yes!
Actually, don't be frightened when you see that equation 9(-5) + -5y = 60 !
When you simplify and apply that concept, you can solve it easily too!

Now, take a look at the equation 9(-5) + -5y = 60
As you've mentioned, 9(-5) = -45
So, the first term on the left is equal to -45. Rewrite the equation and you'll get:
-45 + (-5y) = 60
Got it?

Answer 29

See no, that's where I get lost..

Answer 30

Which part??

Answer 31

All of it. Thanks for your help, but I'm just gonna give up..

Answer 32

9(-5) = -45 Agree?

Answer 33

yes

Answer 34

Got it?