11*(5с+d) +3*(d+c) упрастите

Question

11*(5с+d) +3*(d+c) упрастите

Answer 1

11*5с+11*d+3*d+c*3
55c+11d+3d+3c
58c+14d

Answer 2

11 ( 5c + d) + 3 ( d + c) = 55c + 11d + 3d + 3c = 58c + 14d  = 2( 29c + 7d)