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Please help me! Thank you so much.
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Please help me! Thank you so much.

Please help me! Thank you so much.-example-1
User Armel
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1 Answer

3 votes

Answer:

57

Explanation:

3^r = 19

Multiply each side by 3

3 * 3^r = 19 *3

We know that a^b * a^ c = a^ ( b+c)

3^1 * 3^r = 19 *3

3^(r+1) = 19*3

3^(r+1) = 57

User ArGh
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