Question

Реши уровненения, сделай проверку.
X•4=56
51:y=3
X-19=6•7

Answer 1

x•4=56

x=56÷4

x=14

14•4=56

56=56

51÷y=3

y=51÷3

y=17

51÷17=3

3=3

Answer 2

$x \times 4 = 56 \\ x = 56 \div 4 \\ x = 14$

Проверка:

$14 \times 4 = 56$

$51 \div y = 3 \\ y = 51 \div 3 \\ y = 17$

Проверка:

$51 \div 17 = 3$

$x - 19 = 6 \times 7 \\ x - 19 = 42 \\ x = 42 + 19 \\ x = 61$

Проверка:

$61 - 19 = 6 \times 7 \\ 61 - 19 = 42$