Question

Solve, using the substitution method.

4x + 2y = 11
x – 2 = – 2y

A. (3, -1/2)
B. (0, -2)
C. (0, -11/2)
D. (7, -5/2)

I KNOW FOR SURE IT IS EITHER C OR B I WILL MEDAL AND FAN!

Answer 1

@livias.random

Answer 2

i am sure it is c

Answer 3

@livias.random

Answer 4

i just need u to check so i can have some comfort lol :)

Answer 5

is i am wrong can u plz tell me how? thx

Answer 6

if i am wrong i mean***

Answer 7

x – 2 = – 2y
x = -2y + 2

4(-2y + 2) + 2y = 11
-8y + 8 + 2y = 11
-6y + 8 = 11
-6y =3
y = -1/2

x = -2y + 2
x = -2(-1/2) + 2
x = 1 + 2
x = 3

(3,-1/2)

Answer 8

oh snap

Answer 9

So I got a, but I could have made a stupid mistake somewhere, do you want to show me your working?

Answer 10

yes one sec let me type it

Answer 11

x – 2 = – 2y
x = -2y + 2


4(-2y + 2) + 2y = 11
-8y + 8 + 2y = 11
-6y + 8 = 11
-6y =3
y = -11/2

x = -2y + 3
x = -2(-1/2) + 2
x = 0+1
x = 0

OMG I KNOW WHAT I DID WRONG U WERE RIGHT!

Answer 12

x – 2 = – 2y

0, -11/2

0 - 2 = -2 (-11/2)
-2 = 22/2
-2 = 11

No
-
x – 2 = – 2y

3, -1/2

3 - 2 = -2 (-1/2)
1 = 2/2
1 = 1

Yes

Answer 13

AWESOME

Answer 14

ON THE SECOND PART I SAID -11/2 instead of -1/2

Answer 15

YES

Answer 16

thx for cheking me!

Answer 17

No worries :)