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( (x+7)x6-10)ampartit la4+5 egal 25



Răspuns :

( (x+7)x6-10):4+5 =25
(6x+42-10):4=25-5
(6x+32):4=20
6x+32=20x4
6x+32=80
6x=80-32
6x=48
x=48:6
x=8