Question

Use the elimination method to solve the system.


2x – 2y = –8
x + 2y = –1

Answer 1

@uri

Answer 2

Add both the equations.

Answer 3

Remember -2y and +2y will be cancelled.

Answer 4

kk

Answer 5

@Ashley_Cute add and show,what answer you get?

Answer 6

kk

Answer 7

okay i got 3x-9

Answer 8

3x=-9*

Answer 9

o sry

Answer 10

Now divide -9 with 3,What do you get?

Answer 11

-3

Answer 12

Correct,So x is -3
Now put the value of x in this eq:
x + 2y = –1

Answer 13

^second eq

Answer 14

kk

Answer 15

We have to find y now

Answer 16

would i subtract 3 or add 1

Answer 17

@uri

Answer 18

2y=-1+ 3 :)

Answer 19

@Ashley_Cute

Answer 20

kk so in order to get y by itself i add 1

Answer 21

x + 2y = –1
-3 +2y=-1

We will shift -3 to the right side so sign changes
2y=-1+3
2y=2

Now divide 2/2 and answer

Answer 22

y=1 :)

Answer 23

thx guys

Answer 24

Yw :)

Answer 25

wc