Question

$y \div 23 = 36 \div 12$
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Answer 1

$\frac{y}{23} = \frac{36}{12} \\ \frac{y}{23} = 3 \\ y = 23 \times 3 \\ y = 69$

Answer 2

$y : 23 = 36 : 12\\y : 23 = 3\\y = 3 \cdot 23\\y = 69$

Ответ: $69$