Question

Pls pls help whoever gets it right gets a crown

Answer 1

b = 5

Explanation:

72 = 3 × (5b - 1)

72 = 15b - 3

75 = 15b

b = 75 : 15

b = 5

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check

72 = 3 × (5 × 5 -1)

72 = 3 × 24

72 = 72

the answer is good