Mathematics, 07.12.2020 06:00, amarshall90

Consider the following system of equations x+y=11
2x+y= -3
which equation can be added to the system so the solution does not change
PLEASE HELP ME!!! and the answer choices are:
x-y=2
-2x+-2y=-2
3x+y=20
x+2y=18
please help 15 points for grabs

Answers: 3

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Consider the following system of equations x+y=11
2x+y= -3
which equation can be added...