Odpowiedź:
[tex]\frac{0,4 - x}{2} = 3- x[/tex]
0,4 -x = 2(3-x)
0,4 - x = 6 - 2x
x = 5,6
[tex]1\frac{1}{4}x - 3 = \frac{2 - 5x}{4} - \frac{x + 2}{5}[/tex]
[tex]\frac{5}{4}x - 3 = \frac{2 - 5x}{4} - \frac{x +2}{5}[/tex] / * 20
[tex]20(\frac{5}{4}x - 3) = 20(\frac{2 - 5x}{4} - \frac{x + 2}{5})[/tex]
25x - 60 = 10 - 25x - 4x - 8
- 62 = - 4x
x = 15,5
2(x + 2) = 4(1/2x - 8)
2x + 4 = 2x - 32
0x = - 36 - równanie sprzeczne
[tex]2\frac{2}{3}x + 3 = 5\frac{2}{3}x - \frac{1}{15}[/tex]
[tex]\frac{8}{3}x + 3 = \frac{17}{3}x - \frac{1}{15}[/tex]
[tex]-\frac{9}{3}x = -\frac{46}{15}[/tex]
[tex]x = \frac{46}{45}[/tex]
Ps. Co to za równanie? równanie drugie
