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Cum rezolv X:7:2:5=8 URGENT!!!!!


Răspuns :

X:7:2=8*5 X:7:2=40 X:7=2*40 X:7=80 X=80*7 X=560
prin metoda mersului invers:
x:7:2:5=8
x:7:2=8×5
x:7:2=40
x:7=40×2
x:7=80
x=80×7
x=560