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3 years ago

{2x + y = -1} {3x- 5y + -21}

Mathematics

2 answers:

NARA [144]3 years ago

8 0

Answer:

your question is not complete or should I say not correct ☺️

SVEN [57.7K]3 years ago

6 0

Answer:

(-2, 3).

Step-by-step explanation:

2x + y = -1

3x- 5y = -21

Multiply the first equation by 5:

10x + 5y = -5 Adding this to the second equation:

13x = -26

x = -2.

Substituting this into equation 1:

2(-2) + y = -1

y = -1 + 4 = 3.

Checking this result in the second equation:

3(-2) - 5(3)

= -5 - 15 = -21

- Checks OK.

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