3 years ago

Solve the system using substitution: x = -4y and x + 5y = 2 Please and thank you.

Mathematics

1 answer:

Novay_Z [31]3 years ago

7 0

Answer:

x = - 8, y = 2

Step-by-step explanation:

$x = - 4y......(1) \\ x + 5y = 2....(2) \\ plug \: x = - 4y \: in \: equation \: (2) \\ - 4y + 5y = 2 \\ y = 2 \\ plug \: y = 2 \: in \: equation \: (1) \\ x = - 4(2) \\ x = - 8\\$

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