cena 1 jogurtu --- 1,5 * x
cena 1 kiwi ------- x
2 * 1,5x + 6 * x = 4,50
3x + 6x = 4,50
9x = 4,50
x = 4,50 : 9
x = 0,50
cena 1 jogurtu --- 1,5 * x = 1,5 * 0,5 = 0,75zł
cena 1 kiwi ------- x = 0,50zł
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cena 1 jogurtu --- 1,5 * x
cena 1 kiwi ------- x
2 * 1,5x + 6 * x = 4,50
3x + 6x = 4,50
9x = 4,50
x = 4,50 : 9
x = 0,50
cena 1 jogurtu --- 1,5 * x = 1,5 * 0,5 = 0,75zł
cena 1 kiwi ------- x = 0,50zł