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Kiwi - x
2 Grapefruity + 6 Kiwi = 4 zł 50 gr
2 * 1,5 x + 6 * x = 4 zł 50 gr
3x + 6x = 4 zł 50 gr
9x = 4 zł 50 gr/:9
x = 0, 50 zł
Grapefruit - 0,75 zł
Kiwi - 0,50 zł
kiwi-x
2*1,5x + 6x = 4,50
9x = 4,50 /:9
x = 0,50
1,5*0,50 =0,75
spr:2 *0,75 + 6*0,50 = 4,50
Odp: Cena grapefruita to 75 gr a kiwi 50gr
3x + 6x = 4 zł 50 gr
9x = 4 zł 50 gr/:9
x = 0, 50 zł
Grapefruit - 0,75 zł
Kiwi - 0,50 zł