Question

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


x+y=-1
x-3y=11



A.


(2, −3)


B.


(−2, 1)


C.


(5, −2)


D.


(−6, 5)

Answer 1

write equations for y.

Answer 2

you can re-arrange equations.
\[y = -1 -x \]\[y = \frac{x-11}{3}\]

Answer 3

but -1-x =−x−1 & x-11/3 is justx+−113

Answer 4

-11/3 i don't get it

Answer 5

no. we are asked to find solutions for given 2 equations. that means you need to find the point where those equations meet

Answer 6

okay?

Answer 7

Oh, that makes more sense

Answer 8

yes. so at the common point x and y of each equation are same

that means y points are equal

Answer 9

so we equate
\[-1 -x = \frac{x-11}{3}\]

Answer 10

\[3(-1-x) = x - 11\]\[4x = 8\]x = 2

Answer 11

that would be 4/3 for the first one

Answer 12

yes. you are correct

Answer 13

second one is 2

Answer 14

:D

Answer 15

bye

Answer 16

wait!!

Answer 17

so its 2,-3?