Question

Решите уравнение(на картинке)

Answer 1

$\frac{5 - y}{4} = \frac{3}{7} \\ 7(5 - y) = 12 \\ 35 - 7y = 12 \\ - 7y = 12 - 35 \\ - 7y = - 23 \\ y = \frac{23}{7} \\ y = 3 \frac{2}{7}$

Answer 2

5−y=3/7

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4

7(5−y)=12

35−7y=12

−7y=12−35

−7y=−23

y=23/3

y=3 целых2/7