Odpowiedź :
Odpowiedź:
a) 6x = 2x - 8
6x - 2x = -8
4x = -8 /: 4
x = -2
b) 7x = 2x - 20
7x - 2x = -20
5x = -20 /: 5
x = -4
c) 9x = 3x + 20
9x - 3x = 20
6x = 20 /: 6
x = 3 i 3/10
d) 3x = 9 - 6x
3x + 6x = 9
9x = 9 /: 9
x = 1
Pozdrawiam.
Odpowiedź:
a) 6x = 2x - 8
6x - 2x = -8
4x = -8 /: 4
x = -2
b) 7x = 2x - 20
7x - 2x = -20
5x = -20 /: 5
x = -4
c) 9x = 3x + 20
9x - 3x = 20
6x = 20 /: 6
x = 3 i 3/10
d) 3x = 9 - 6x
3x + 6x = 9
9x = 9 /: 9
x = 1
Pozdrawiam.