3 years ago

Solve the system of equations by the addition method. x- y=-9 x+y=-5

Mathematics

1 answer:

Elis [28]3 years ago

6 0

Answer:

x=-7, y=2. (-7, 2).

Step-by-step explanation:

x-y=-9

x+y=-5

-----------

2x=-14

x=-14/2

x=-7

-7-y=-9

y=-7-(-9)

y=-7+9

y=2

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