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30 (10x-4)=14(4x-2)


plzz


Răspuns :

rezolvare:
300 x -120=56x-28
300x-56x=120-28
244 x=92
x=92/244
30(10x-4)=14(4x-2)
300x-120=56x-28
300x-56x=-28+120
244x=92
x=92/244=46/122=23/61