Answer:
Step-by-step explanation:
10r - r-6r+11 - Constant = 11 & coefficient = r
19-5n-8+14 - constant = 8,14,19 & coeff = n
-5-13y-2y-18 - constant = -5,18 & coeff = y
8a-7b+1-2b+3a - constant = 1 & coeff = a,b
11x-4y+2x+8 - constant = 8 & coeff = x,y
