Question

Solve, using linear combination.

5x + 2y = -4
-3x + 2y = 12
(Points : 4)
(-2, 3)

(0, -2)

(2, -7)

(4, 0)

Answer 1

2,-7

Answer 2

how

Answer 3

Isnt it 2,-3

Answer 4

-2,3

Answer 5

they gave u the answers already so all i did was i try all of them till i get the answers -4 and 12

Answer 6

Ok thanks

Answer 7

Can you guys help me on few more

Answer 8

THis is the graph with the problem

Answer 9

Is it -3,0

Answer 10

2)0,3 cuz it didn't move its stay on zero and then to the right the point is 3

Answer 11

First, multiply the first one by -1
5x + 2y = -4
-3x + 2y = 12

-5x-2y=4
-3x+2y=12

Notice the -2y and +2y.

-5x-2y=4
-3x+2y=12
------------
-8x =16

-8x=16
/-8 /-8

x= -2

Now, substitute x in the first equation to find y:
5(-2) + 2y = -4
-10+2y=-4
+10 +10

2y=6
/2 /2

y=3

(-2, 3)

Answer 12

I already did that one got the same answer to i am talking about the graph

Answer 13

is it -3,0

Answer 14

talking about the graph that i attached

Answer 15

Or 3,0

Answer 16

Yes, the point is at (-3, 0) so I'd assume so. :o)

And
x-y=3
x+y=3
------
x=3

3-y=3
-3 -3
y=0

Answer 17

No, the points at positive 3, sorry

Answer 18

its in the right side so its positive

Answer 19

okay

Answer 20

So is it 3,0 or -3,0

Answer 21

(3, 0) :o)

Answer 22

3,0 is the answer right cause i got that answer to

Answer 23

I think so :o)

Answer 24

yes

Answer 25

Ok cool can you help me on a few more

Answer 26

How many solutions are there to the following system of equations?

4x - 14y = 6
-2x + 7y = -3
(Points : 4)
0

1

2

infinitely many

Answer 27

Dont worry i am trying to figure it out to so you wont feel i am taking advantage

Answer 28

Is it 0 solutions

Answer 29

I'm not sure how to do this one. Maybe this page can help you? :o)

http://answers.yahoo.com/question/index?qid=20100108140909AAuJUwN

Answer 30

I already got the answer i am going with 0 solutions

Answer 31

its 0

Answer 32

Solve this system of equations using any method.

3x - y = 4
x + 2y = 13
(Points : 4)
(-1, 7)

(4, 8)

(5, 11)

(3, 5)

Answer 33

I caculated it is 3,5

Answer 34

Do you want help with it then?

Answer 35

Witch problem

Answer 36

3x - y = 4
x + 2y = 13

Answer 37

Is it 3,5 i just plug it in

Answer 38

And it equaled it

Answer 39

Ok.

Answer 40

yep

Answer 41

cool few more please!

Answer 42

Its not a graph i need help O:

Answer 43

Is it Option B

Answer 44

Are you guys there

Answer 45

im here,im trying but i keep on getting B

Answer 46

Me to

Answer 47

then im guessing thats the answer,hold on i tell u in a minute my sister trying she have an a in math while i have a b

Answer 48

she said B is the answer

Answer 49

Lol tell her thanks so much

Answer 50

I knew it

Answer 51

sure

Answer 52

can you girls/Woman help me on a few more about 3

Answer 53

Each child ticket for a ride costs $3, while each adult ticket costs $5. If the ride collected a total of $115, and 33 tickets were sold, how many of each type of ticket was sold?
(Points : 4)
8 children and 25 adults

17 children and 16 adults

156 children and 41 adults

8 adults and 25 children

Answer 54

sure im a junior,shes a senior

Answer 55

I am 90% sure that 8 children and 25 adults

Answer 56

Is the answer

Answer 57

Or 8 adults and 25 children

Answer 58

its 8adults and 25 children

Answer 59

Dam flabbit

Answer 60

How many solutions are there to the following system of equations?

2x - y = 2
-x + 5y = 3

(Points : 4)
0

1

2

infinitely many

Answer 61

I knew it was either one of those XD

Answer 62

I think there 1 solution

Answer 63

1

Answer 64

Yes i am correct!

Answer 65

yep

Answer 66

THis one is a hand full number 8 is the one hopefully we both are going to work out

Answer 67

Is it option A

Answer 68

The top answer

Answer 69

yeah

Answer 70

a

Answer 71

Sweet

Answer 72

Solve the following system of equations.

x + y = 3
2x + 2y = 6
(Points : 4)
(0, 3)

(1.5, 1.5)

no solution

infinite number of solutions

Answer 73

Hmm

Answer 74

I think its 2 solutions

Answer 75

So i am going with infinite number of solutions

Answer 76

that what i got 2

Answer 77

put D

Answer 78

You sure i feel shocked

Answer 79

O:

Answer 80

let me ask my sister

Answer 81

Cause i usualy ok with these problems i am just shocked we got the same answer

Answer 82

You guys there still

Answer 83

yea,she said hold on

Answer 84

k good with me

Answer 85

its 2

Answer 86

So infinite

Answer 87

yep

Answer 88

Which equation will result if the substitution method is used to solve the following system of linear equations?

x + y = 6
x = y - 2
(Points : 4)
(y - 2) + y = 6

x + y = y - 2

x + (y -2) = 6

x = (x- 6) - 2

Answer 89

This is the new one i just need this one and one more then i will give you best response and a medal

Answer 90

I think it is

Answer 91

x + y = y - 2

Answer 92

Witch is B

Answer 93

i need my sister again,hold on

Answer 94

Ok tell her to use this one cause i double check my asnwer and i got this