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11-09-2019
Mathematics

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Which ordered pair is a solution to the linear system? (2x + y = 5) (x – y = 13)

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Аноним Аноним

11-09-2019

Answer:

The solution is {6, -7}.

Step-by-step explanation:

2x + y = 5

x – y = 13 Adding these 2 equations eliminates y:

3x + 0 = 18

x = 6.

Substituting for x in equation (1):

2(6) + y = 5

y = 5 - 12 = -7.

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