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ch4aika [34]
2 years ago
8

13. Describe the system by substitution: y=x-7 2x - y = 3

Mathematics
1 answer:
torisob [31]2 years ago
4 0

Answer:

x = y + 7 \\  \\ x =  \frac{3 + y}{2}  \: or \: y = 2x - 3

Step-by-step explanation:

1. \: 2x = 3 + y \\ 2. \: x =  \frac{3 + y}{2}  \: or \: y = 2x - 3 \\  \\ 1. \: y + 7 = x \\ 2. \: x = y + 7

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