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

{−5x−3y=12y=x−12

(3, −9)

(0, −4)

(−6, 6)

(1, −11)

would the answer be (3,-9)?

hoiuu
Oct 30, 2018

edited by
Guest
Oct 30, 2018

#1**+1 **

Is this Q written correctly?

-5x - 3y = 12y

-5x = 15y

x = -3y NONE of the options fit this equation.

ElectricPavlov
Oct 30, 2018

#2**+2 **

I think this is supposed to be

-5x - 3y = 12

y = x - 12

Sub the second equation into the first for y and we have

-5x - 3 ( x - 12) = 12 simplify

-5x - 3x + 36 = 12

-8x + 36 = 12 subtract 36 from both sides

-8x = - 24 divide both sides by -8

x = 3

And y = 3 - 12 = -9

So you are correct!!!!.... (3 , -9) is the solution

CPhill
Oct 30, 2018