Question

check my answer? medal for best

Answer 1

and I would love to know how to do this if its wrong, not just the correct answer please

Answer 2

can you solve for "x" the bottom equation?

Answer 3

actually, y=-1, and i will show u why

Answer 4

first u use substitution

Answer 5

2x+y=-7
-2x -2x
y=-2x-7

Answer 6

then, you combine the two equations

Answer 7

combine, how, @Jamierox4ev3r ?

Answer 8

3x + 2(-2x-7)=-11

Answer 9

then u solve for x

Answer 10

what do you mean solve for x @jdoe0001? what will that do for me?

Answer 11

3x-2(-2x-7)=-11
3x-4x-14=-11
-x-14=-11
+14 +14
-x=3
x=-3

Answer 12

it will give you an equivalence :)

Answer 13

so x=-3. Then, you can use this to solve for y

Answer 14

one you can use :)

Answer 15

all u have to do is plug in x into the two equations. lets start with the first one

Answer 16

okay, I follow so far... but why subbing in x, why not y?

Answer 17

2(-3)+y=-7
-6+y=-7
+6 +6
Y=-1

Answer 18

now the other equation

Answer 19

3(-3) +2y=-11
-9+2y=-11
+9 +9
2y=-2
y=-1

Answer 20

because both equations provide the solution y=-1, your y-variable is -1. That is your final answer.

Answer 21

oh okay, thanks a ton!

Answer 22

np