garrett8552 garrett8552

03-12-2020
Mathematics

contestada

69,5)
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Solve each system of equations by elimination
9. x + y = -5
x - y = 9

Respuesta :

oscar236 oscar236

03-12-2020

Answer:

(2, -7).

Step-by-step explanation:

x + y = -5

x - y = 9 Adding, to eliminate y:

2x = 4

x = 2

Plug this into first equation:

2 + y = -5

y = -5 - 2

y = -7.

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