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160:8+800:5=x:3-480:4
E URGENT
Cine stie sa raspunda . Daca faceti impartirea mai intai mai bn nu raspundeti


Răspuns :

160:8+800:5=x:3-480:420+160=x:3-120
180=x:3-120
mai putem scrie
x:3-120=180
x:3=180+120
x:3=300
x=300·3
x=900
20+160=x:3-120
180=x:3-120
x:3-120=180
x:3=180+120
x:3=300
x=300x3
x=900