Реши уравнения: x · 8 = 56; 72 : y = 9; a − 34 = 56.

\(x \cdot 8 = 56\)
\(x = 56 : 8\)
\(x = 7\)

\(72 : y = 9\)
\(y = 72 : 9\)
\(y = 8\)

\(a - 34 = 56\)
\(a = 56 + 34\)
\(a = 90\)

Ответ: x = 7, y = 8, a = 90.