a)
4x - 3 = 9
4x = 9 +3
4x = 12 | :4
x= 3
b)
6x - 2 = 10x
6x - 10x = 2
- 4x =2 | : (-4)
x = [tex]-\frac{1}{2}[/tex]
d)
3 (x+3) = 2x -1
3x +9 =2x -1
3x -2x= -1 -9
x= -10
e)4x =48 | :4
x= 12
Odpowiedź:
4x = 9 + 3
4x = 12 / : 4
x = 3
- 4x = 2 /: (- 4)
x = - 2/4
x = - 1/2
3 (x + 3) = 2x - 1
3x + 9 = 2x - 1
3x - 2x = - 1 - 9
x = - 10
e)
4x = 48 /:4
x = 12
Szczegółowe wyjaśnienie:
