Решение:
- \( 37y = 444 \)
\( y = \frac{444}{37} \)
\( y = 12 \)
- \( z : 17 = 34 \)
\( z = 34 \cdot 17 \)
\( z = 578 \)
- \( (x - 8) \cdot 12 = 132 \)
\( x - 8 = \frac{132}{12} \)
\( x - 8 = 11 \)
\( x = 11 + 8 \)
\( x = 19 \)
- \( 84 : x + 5 = 17 \)
\( 84 : x = 17 - 5 \)
\( 84 : x = 12 \)
\( x = \frac{84}{12} \)
\( x = 7 \)
Ответ: а) y = 12; б) z = 578; в) x = 19; г) x = 7.