Odpowiedź :
x+1-cena zeszytu
x-cena pisaka
3(x+1)+5x=17
3x+3+5x=17
8x=14
x=14/8
x=1 i 6/8= 1i 3/4 = 1,75zl
cena zeszytu= 1,75 +1 = 2,75 zl
cena pisaka= 1,75 zl
x-cena pisaka
3(x+1)+5x=17
3x+3+5x=17
8x=14
x=14/8
x=1 i 6/8= 1i 3/4 = 1,75zl
cena zeszytu= 1,75 +1 = 2,75 zl
cena pisaka= 1,75 zl
x+1-cena zeszytu
x-cena pisaka
3(x+1)+5x=17
3x+3+5x=17
8x=14
x=14/8
x=1 i 6/8= 1i 3/4 = 1,75zl
cena zeszytu= 1,75 +1 = 2,75 zl
cena pisaka= 1,75 zl
x-cena pisaka
3(x+1)+5x=17
3x+3+5x=17
8x=14
x=14/8
x=1 i 6/8= 1i 3/4 = 1,75zl
cena zeszytu= 1,75 +1 = 2,75 zl
cena pisaka= 1,75 zl