Odpowiedź:
3(x - 5) + x = 2 - x
3x - 15 + x = 2 - x
4x + x = 2 + 15
5x = 17 /:5
x = 17/5 = 3 2/5
x + 2 + 3x = 3(3 - 2x)
4x + 2 = 9 - 6x
4x + 6x = 9 - 2
10x = 7 /:10
x = 7/10
8 - (2x - 5) = 2(3 - x)
8 - 2x + 5 = 6 - 2x
-2x + 2x = 6 - 14
0 = -8
rownanie sprzeczne
10 + 4(1 - x) = 2x - 6
10 + 4 - 4x = 2x - 6
-4x - 2x = -6 - 14
-6x = -20 /:(-6)
x = 20/6 = 3 2/6 = 3 1/3
Szczegółowe wyjaśnienie:
