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ivann1987 [24]
2 years ago
12

Solve by substitution 9x+y=21, -x-3=y

Mathematics
1 answer:
VashaNatasha [74]2 years ago
4 0

Answer:

point form: (3,-6)

equation form: x=3, y=-6

Step-by-step explanation:

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Step-by-step explanation:

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