Question

If 3^m×27(2m-1)=81, find m

Answer 1

Answer:

Given

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$3 {}^{m} \times 27(2m - 1) = 81$

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find

m=??

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solve

3 {}^{m} ×27(2m+1 ) =81

• $3 {}^{m} \times 27(2m - 1) = 81 \\ \\ 3 {}^{m} \times 54m - 27 = 81 \\ \\ 3 {}^{m} \times 54m = 81 + 27 \\ \\ 3 {}^{m} \times 54m = 108 \\ \\ 3 {}^{m} \times m = 108 \div 54 \\ \\ 3 {}^{m} \times m = 2$