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MAVERICK [17]
3 years ago
12

Plz help me!!!!!!!!!!

Mathematics
2 answers:
VladimirAG [237]3 years ago
8 0

Answer:

7

Step-by-step explanation:

Mila [183]3 years ago
5 0

Answer:

7

Step-by-step explanation:

because we know that a=3 so then 3a=9

9-b=c

b=2

9-2=c

c=7

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Answer:

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Step-by-step explanation:

Solve the first for a, then substitute into the second.

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