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22-10-2019
Mathematics

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Solve each system using substitution.
HELP
3.
[tex]y = - 4x + 2 \\ y = x - 3[/tex]

4.
[tex] - 7x + 2y = 18 \\ 6x + 6y = 0[/tex]

Respuesta :

23-10-2019

Answer:

x = 1 and y = -2

x = -2 and y = 2

Step-by-step explanation:

-4x + 2 = x - 3

5x = 5

x = 1

y = -4 + 2 = -2

-21x + 6y = 54

6x + 6y = 0

27x = -54

x = -2

y = 2

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