3b-5
(3)* *C )2:46 = 336
2
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Answered by
1
Answer:
5/4
Step-by-step explanation:
(2/5)^(7-b)×(2/5)^(-(2+4b))=(2/5)^(3b-5)
7-b-2b-4= 3b-5
b=10/8
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0
Answer:
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