Odpowiedź :
Odpowiedź:
b) 3x – 5 = x + 8
3x - x = 8 + 5
2x = 13//:2
x = 13/2 = 6 1/2
c) 3(x + 3) = 2x – 1
3x + 9 = 2x - 1
3x - 2x = -1 - 9
x = -10
a) 4x - 3 = 9
4x = 9 + 3
4x = 12//:4
x = 3
Licze na naj ;)
Odpowiedź:
b) 3x – 5 = x + 8
3x - x = 8 + 5
2x = 13//:2
x = 13/2 = 6 1/2
c) 3(x + 3) = 2x – 1
3x + 9 = 2x - 1
3x - 2x = -1 - 9
x = -10
a) 4x - 3 = 9
4x = 9 + 3
4x = 12//:4
x = 3
Licze na naj ;)