2 years ago

Solve the system by substitution

Mathematics

1 answer:

olganol [36]2 years ago

6 0

Answer:

-2

Step-by-step explanation:

$y = - 6x \\ y = - 4x + 4 \\ then \: substitute \\ - 6x = - 4x + 4 \\ - 6x + 4x = 4 \\ - 2x = 4 \\ \frac{ - 2x}{ - 2} = \frac{4}{ - 2} \\ then \: - 2 \: cancel \: by \: - 2 \\ x = - 2$

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