Răspuns :
Răspuns:
[50:(6y-7)+2×5×8]:(5×6)+4=7
[50:(6y-7)+2×5×8]:30=3
50:(6y-7)+2×5×8=90
50:(6y-7)+80=90
50:(6y-7)=10
50=(6y-7)×10
50=60y-70
60y=120
y=2
Răspuns:
[50:(6y-7)+2×5×8]:(5×6)+4=7
[50:(6y-7)+2×5×8]:30=3
50:(6y-7)+2×5×8=90
50:(6y-7)+80=90
50:(6y-7)=10
50=(6y-7)×10
50=60y-70
60y=120
y=2