Mathematics, 19.01.2021 17:30 sabel1234

Explain how System 1 becomes equivalent to System 2. System 1:
Ax + By = C
Lx + My = N

System 2:
Ax + By = C
(A − L)x + (B − M)y = C − N

The first equation in System 1 is the sum of the equations in System 2. The second equation in System 2 is the first equation in System 2.
The first equation in System 1 is the difference of the equations in System 2. The second equation in System 1 is the first equation in System 2.
The second equation in System 2 is the sum of the equations in System 1. The first equation in System 2 is the first equation in System 1.
The second equation in System 2 is the difference of the equations in System 1. The first equation in System 2 is the first equation in System 1.

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Explain how System 1 becomes equivalent to System 2. System 1:
Ax + By = C
Lx + My = N<...