Question

please can you explain it​

Answer 1

Step-by-step explanation:

$49 {}^{x} = \: 7 {}^{3 } \\ \\ (7 { \: }^{2} ) {}^{x \: = \: } 7 {}^{3} \\ 7 {}^{2x = 7 {}^{3} } \\ \\ 2x = 3 \\ x = \frac{3}{2}$

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