Question

Help with math please fan and medal
Which expression shows the solution of the system?
{5x + 4y = 2
-2y = 8 + 4x

A) |2 4| |5 2|
|4 8 | |-2 4|
---------------------
|5 4| |5 4|
|-2 8||-2 8|

B) |5 2| |2 4|
|-2 4 | |4 8|
---------------------
|5 4| |5 4|
|-2 8||-2 8|

C) A) |2 4| |5 2|
|8 -2 | |-4 8|
---------------------
|5 4| |5 4|
|-4 -2||-4 -2|

D) A) |5 2| |2 4|
|-4 8 | |8 -2|
---------------------
|5 4| |5 4|
|-4 -2||-4 -2|

Answer 1

@ganeshie8

Answer 2

@AloneS

Answer 3

5x + 4y = 2
-4x -2y = 8...(2)
--------------
5x + 4y = 2
-8x -4y = 16
-------------
-3x = 18.....x = -6

5x + 4y = 2
5(-6) + 4y = 2
-30 + 4y = 2
4y = 32
y = 8

Answer 4

Yo @RussianBoss1 may you post them one by one.. not just in one post.. cuz i get confused

Answer 5

you mean the answer choices?

Answer 6

@scoobydo

Answer 7

D it think