👤

daca x =5 si a+b=13,calculati
a)3 x X+7xa+7xb
b)X x a+X x b-50
c)10 x X+(4xa+4xb)
d)(4xa+4xb-2 x X)X(2xa+2xb+x


Răspuns :

E simpul frate calculeza si tu:3x7+7-50+4x4