231k views
2 votes
Help! pls

11. The partial solution to a system of equations below contains an error. Find and correct the mistake to find the correct value of y.

2x + 2y = 4
x + 4y = 14​

User Mike Brant
by
5.0k points

1 Answer

5 votes

Answer:

Explanation:

2x + 2y = 4

-2x - 8y = -28

-6y = -24

y = 4

2x + 2(4) = 4

2x + 8 = 4

2x = -4

x = -2

(-2, 4)

User Stig Omdal
by
4.5k points