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Tuturica2000
a fost răspuns

Pb 6 cu ma gandesc la un numar

Pb 6 Cu Ma Gandesc La Un Numar class=

Răspuns :

(((a×9-75)÷8+3)÷2)×400=1200

((a×9-75)÷8+3)÷2=3

(a×9-75)÷8+3=6

(a×9-75)÷8=3

a×9-75=24

a×9=99

a=99÷9

a=11

Loredana1000
a×9-75:8+3:2×400=1200
a×9 = b
b-75:8+3:2×400=1200
b-75= c
c:8+3:2×400=1200
c:8= d
d+3:2×400=1200
d+3= e
e:2×400=1200
e:2= f
f×400=1200
f=1200:400
f=3

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