Question

a) daca a =-11,b+c=89, calculati c+a+b=
b) daca a+b =-71,c+d=+26,calculati (a+b)+(d+c)=
c)daca a+c=-7,b+d=-35,calculati (a+b+c)+d=
Multumesc anticipat.

Answer 1

a. -11+89 = 78
b. - 71 + 26 = - 45
c. -7 - 35 = - 42

Answer 2

a)  a=-11 si b+c=89      =>  c+a+b=(b+c) + (a) = 89 - 11 = 78 ;
b)  a+b=-71 si c+d=26  =>  (a+b) + (c+d) = -71+26 = -45 ;
c)  a+c=-7 si b+d= -35  =>   a+c + b+d = -7 -35 = - 42 ;