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2 ⅓x = ⅔x +20
2 ⅓x - ⅔x = 20
⁵/₃ x = 20 /×3
5x = 60/÷5
x = 12
Odp: Cena tortu to 12.
2⅓x =⅔x + 20
2⅓x - ⅔x = 20
1⅔x = 20 /:1⅔
x = 12 zł
2⅓* t =⅔* t + 20
2⅓* t - ⅔* t = 20
1⅔* t = 20 /:1⅔
t = 12 zł
Odp.Tort kosztuje 12 złotych