In the example x 9 / 17 = 7 which same digit will replace the ?

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Q. 40 In the example $** \times 9 \div 17 = 7$ which same digit will replace the $**$?
Let the digit be $d$. The notation $**$ typically represents a two-digit number where both digits are the same, so the number would be $11d$.
The equation becomes:

$$11d \times 9 \div 17 = 7$$ $$99d = 7 \times 17$$ $$99d = 119$$ $$d = \frac{119}{99}$$

Since $d$ must be a single integer digit, and $\frac{119}{9