Odpowiedź :
I) 1/2 = - 2/3x. /•3/2
3/4 = - x
- 3/4 = x
A) 27 = x + 25
27 - 25 = x
x = 2
B) 111 = x - 12
111 + 12 = x
123 = x
3/4 = - x
- 3/4 = x
A) 27 = x + 25
27 - 25 = x
x = 2
B) 111 = x - 12
111 + 12 = x
123 = x