Question

(Willl fan and medal)

Which ordered pair is the solution to the system of equations?

{x+y=−1
{3x−y=21



(10, −11)

(7, −8)

(5, −6)

(5.5, −6.5)

Answer 1

i need help

Answer 2

ok ill help

Answer 3

yay

Answer 4

Check your question... something seems off

Answer 5

fixed it

Answer 6

x+y=−13x−y=21
x+y=−13x−y=21

Answer 7

that what

Answer 8

both are not linear

Answer 9

sorry i had to edit the question

Answer 10

Yep now they seem right

Answer 11

lol sorry

Answer 12

u will have to do substitution

Answer 13

i dont know what you mren

Answer 14

x+y=-1
3x-y=21

Multiply the first equation by 3
3x+3y=-3
3x-y=21

Now subtract both the equation,
4y=-24
y=-6

now which is the only option that has -6 for y?

Answer 15

so it it (5,-6)

Answer 16

u will have to substitute Y with X to find x

Answer 17

I agree @mecharv

Answer 18

so is (5-6) the answer

Answer 19

yes

Answer 20

@queenbb Cheers :)