khmccullo29 khmccullo29

10-11-2018
Mathematics

contestada

Solve.
−3x+3y=−15
x−y=5

A. (5, 0)
B. (0, −5)
C. (1, 4)
D. infinitely many solutions

Respuesta :

KhaRNate KhaRNate

10-11-2018

Using elimination method:

( x - y = 5 ) * 3
3x - 3y = 15
-3x + 3y = -15
---------------------
0x + 0y = 0

Everything cancels

Answer: D infinitely many solutions

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