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algol13
4 years ago
5

Solve the system of equations using substitution: ſx + 4y = 15 (2x – y=-15

Mathematics
1 answer:
lana66690 [7]4 years ago
8 0

Answer:

Step-by-step explanation:

x + 4y = 15

8x - 4y = -60

9x = -45

x = -5

-5 + 4y = 15

4y = 20

y = 5

(-5, 5)

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