alondra7758 alondra7758

27-10-2019
Mathematics

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2x + y = -4
2x + 3y = 4

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SilvanaMartins SilvanaMartins

27-10-2019

Answer: x=4 ; y= -4

3

Step-by-step explanation:

2x + y = -4 .(-3)

2x + 3y = 4

-6x-3y=12

2x + 3y = 4

4x=16

x= 16

4

x=4

2x + 3y = 4

2.4+3y=4

8+3y=4

3y= -8+4

y= -4

3

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