Odpowiedź:
x/2 + x/4 + x/5 = x - 1
1/2x + 1/4x + 1/5x - x = -1
2/4x + 1/4x - 4/5x = -1
3/4x - 4/5x = -1
15/20x - 16/20x = -1
-1/20x = -1 /*(-20)
x = 20
Szczegółowe wyjaśnienie:
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Odpowiedź:
x/2 + x/4 + x/5 = x - 1
1/2x + 1/4x + 1/5x - x = -1
2/4x + 1/4x - 4/5x = -1
3/4x - 4/5x = -1
15/20x - 16/20x = -1
-1/20x = -1 /*(-20)
x = 20
Szczegółowe wyjaśnienie: