Potrzebne na Teraz! Daje 20 punktów oraz Naj! Zadanie 3 i 4 w załączniku.

c) 5 * x + 21 = 46 / - 21
5x + 21 - 21 = 46 - 21
5x = 25 /:5
x = 5
L = 5 * 5 + 21 = 25 + 21 = 46
P = 46
L = P
Zadanie 3
2*x + 5 = 9 2*x + 5 = 11 2*x + 5 = 5
x = 2 x = 3 x = 0
3*x + 5 =x + 9 3*x + 3 = x + 9 3*x + 9 = x + 9
x = 2 x = 3 x = 0
Zadanie 4