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2x + 4y = 16
4x + 8y = -16 he chooses to eliminate the variable y

1 Answer

3 votes

Answer:

These system of equations have no solution.

Explanation:

We need to solve the system of equations


2x + 4y = 16\\4x + 8y = -16

by eliminating variable y

Let:


2x + 4y = 16--eq(1)\\4x + 8y = -16--eq(2)

Multiply eq(1) by 2 and subtract both equations


4x + 8y = 32\\4x + 8y = -16\\- \ - \ \ \ \ \ \ \ +\\---------\\0x+0y=48\\0\\eq 48

As 0≠48

So, these system of equations have no solution.

User Tom Desp
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