Варіант 2. Номер 115

1) x : 19 = 26
x = 26 · 19
x = 494

2) 238 : x = 14
x = 238 : 14
x = 17

3) ( x + 7) : 8 = 9
x + 7 = 9 · 8
x + 7 = 72
x = 72 - 7
x = 65

4) x : 8 + 7 = 9
x : 8 = 9 - 7
x : 8 = 2
x = 2 · 8
x = 16

5) 48 : ( x + 3) = 6
x + 3 = 48 : 6
x + 3 = 8
x = 8 - 3
x = 5

6) 48 : x + 3 = 6
48 : x = 6 - 3
48 : x = 3
x = 48 : 3
x = 16