Question

i) A x C - C x B daca A - B =24 si C = 3

ii) 7 x A + 9 x B + 2 x C daca A + B 43 si B + C = 15


va rog ajutatima

si va dau coroana

Answer 1

i) C x (A-B)= 3 x 24= 72.
ii) 7 x A+ 7 x B+2 x B+2 x C=
=7 x (A+B)+2 x(B+C)=
=7 x 43+ 2 x15=
= 301+30=
=331