Question

daca x=5si a+b =13 calculati: x×a+x×b-50

Answer 1

x= 5
a+b= 13

x•a+x•b-50= x(a+b)-50= 5•13-50= 65-50= 15

Answer 2

x=5
a+b=13

x×a+x×b-50=
= x×(a+b)-50
=(5×13)-50
=65-50
=15