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IgorLugansk [536]
3 years ago
10

If 8=−3r+7r, then r= [blank] −−−−−−.

Mathematics
1 answer:
Svetllana [295]3 years ago
8 0

Answer:

r = 2

Step-by-step explanation:

8 =  - 3r + 7r \\ 8 = 4r \\ 4r = 8  \\ \\ r =  \frac{8}{4}  \\  \\ r = 2

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