Question

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Answer 1

Answer:

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Answer 2

Answer:

${7}^{2x + 1} \div 49 = 7 {}^{3} \\ {7}^{2x + 1} \div {7}^{2} = 7 {}^{3 } \\ {7}^{2x + 1 - 2} = {7}^{3 } \\ 2x - 1 = 3 \\ 2x = 4 \\ x = 2$

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