Question

Ajutai-ma, cat de repede se poate, va rog.

Answer 1

A=2(3x+6y+1)+y+1
A=6x+12y+2+y+1
A=6x+13y+3

B=3(x+2y+2)-y
B=3x+6y+6-y
B=3x+5y+6

(A+B) : 9 =
=(6x+13y+3+3x+5y+6):9=
=(9x+18y+9 ) :9=
=x+2y+1