Question

★Question -1 st
$\bf \: if \: {3}^{x} \: = \: {5}^{y} = \: {45}^{z} \sf \: prove \: that :$
$\bf \: x = \frac{2yz}{y - z}$
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★ Question -2 nd
• Solve for x and y
$\sf{2}^{1 - \frac{x}{2} } = 4 \: ,( {7}^{1 + x}) \times (49)^{ - 2y} = 1$
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$\huge \: note$
Try to solve both questions and steps must be shown .
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Answer 1

Step-by-step explanation:

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