Question

Find the value of x.
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Answer 1

Answer:

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Answer 2

Answer:

x = 1/2

Step-by-step explanation:

${7}^{ - 2} \times {3}^{2} = {( \frac{3}{7}) }^{4x} \\ {( \frac{3}{7}) }^{2} = {( \frac{3}{7})}^{4x} \\ 4x = 2 \\ x = \frac{2}{4} \\ x = \frac{1}{2}$