Question

Determinati in fiecare caz numarul c, stiind ca:
a) a+b= -6 si axc+bxc=42
b) a+b=-9 si axc+bxc=-72
c) a-b=4 si axc-bxc=-44
d) a-b=-25 si axc-bxc=-250

Answer 1

a)c*(a+b)=42
cx(-6)=42
c=-7
b)cx(a+b)=-72
cx(-9)=-72
x=8
c)cx(a-b)=-44
cx4=-44
c=-11
d)cx(a+b)=-250
cx(-25)=-250
c=10