Question

please help! medal and fan!

Answer 1

Two equations are given below:

a − 3b = 9
a = b − 3

What is the solution to the set of equations in the form (a, b)?

(−9, −6)
(−4, −3)
(−6, −3)
(−9, −7)

Answer 2

(-9,-6)
-9-3(-6)--> -9+18=9
a=b-3--> -9=-6-3

Answer 3

how do you come up with that

Answer 4

are you still there

Answer 5

yea so its like any equation that has an x and a y. all you have to do is substitute the letters for the numbers you are given in your choices so your first ordered pair you are given is:(-9,-6)
so now you have to plug in the numbers given the equations a − 3b = 9 and a=b-3
so a=-9 and b=-6
so we plug those numbers into the first equation
-9-3(-6)=9
so first we do -3*-6 which equals 18 then we subtract 9 and get 9

Answer 6

Since a=b-3
use b-3 to replace a in the first equation

then the first equation becomes: b-3-3b=9
so -2b=12
b=-6

then a=b-3=-6-3=-9

Answer 7

oh okay thanks, and @hockeychick23 do you actually play hockey

Answer 8

the second equation is easier so again a= -9 and b=-6
-9= -6-3
-6+(-3) does equal -9
and yes i do play ice hockey :)

Answer 9

this is just one question
not two

Answer 10

what team @hockeychick23

Answer 11

are you there

Answer 12

this is only one question

Answer 13

the junior ducks

Answer 14

im confused

Answer 15

one person is saying something different than the other person