Question

A) Stiind ca a+b=(-15), calculati - 5a-5b.
B) Stiind ca x+y= - 10 si z=43, calculati xz-yz.
C) Stiind ca x-y= - 4,calculati 2x-2y.
D) Stiind ca x-y= - 2 si z=5,calculati xz-yz

Answer 1

A)a+b=-15/*(-1)=>-a-b=15/*5=>-5a-5b=75 C)x-y=-4/*2=>2x-2y=-8 D)x-y=2;z=5;xz-yz=z(x-y)=5*2=10 P.S. *=ori;/=Impartit. La b nu am stiut,dar sper ca te-am ajutat! :)

Answer 2

eu nu stiu       chiat  nu vca dssdfb