4 Решите уравнение: 56 a) = 28; x 6) y/16 = 5; B) d-4/5 = 12; r) 24 +t/7 =16.

Решение:

1. а) $$ \frac{56}{x} = 28 $$
   $$ x = \frac{56}{28} $$
   $$ x = 2 $$
2. б) $$ \frac{y}{16} = 5 $$
   $$ y = 5 \times 16 $$
   $$ y = 80 $$
3. в) $$ \frac{d-4}{5} = 12 $$
   $$ d - 4 = 12 \times 5 $$
   $$ d - 4 = 60 $$
   $$ d = 60 + 4 $$
   $$ d = 64 $$
4. г) $$ \frac{24+t}{7} = 16 $$
   $$ 24 + t = 16 \times 7 $$
   $$ 24 + t = 112 $$
   $$ t = 112 - 24 $$
   $$ t = 88 $$

Ответ: а) x = 2; б) y = 80; в) d = 64; г) t = 88