Hej!
Zadanie 1 :
a) ⅓x
b) y - x
Zadanie 2 :
2a + a + a + a + a + 3a = 5a + 4a = 9a
Zadanie 3 :
x(x - 3) = 2 • (2 - 3) = 2 • (-1) = -2
Zadanie 4 :
2x + 7 = -2
2x = -2 - 7
2x = -9 || : 2
x = -4,5
3x - 5x - 4 = 1
3x - 5x = 1 + 4
-2x = 5 || : (-2)
x = -2,5
Zadanie 5 :
x → klocki Asi
2x → klocki Kasi
x + 2x = 96
3x = 96 || : 3
x = 32 klocki ma Asia
