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vitfil [10]
2 years ago
15

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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