Question

Dacă a:(b+5)=336 si a:b=301,calculeaza pe a. Daca c:(3+d)=140 si c:d=125,calculeaza pe c.rog urgent

Answer 1

a:(b+5)=336
a:b=301

a=336(b+5)
a=301b

336(b+5)=301b
336b+1680=301b
336b-301b=-1680
35b=-1680
b=-1680:35
b=-48

a=301x(-48)
a= - 14448

c:(3+d)=140
c:d=125

c=140(3+d)
c=125d
140(3+d)=125d
420+140d=125d
140d-125d=-420
15d=-420
d=-420:15
d=-28

c=125x(-28)
c=-3500