4a-(3b-c) -m-(2n+k) 0.19+(4a-c) x+(8y-z) m+(9n-k-p) a-(4b+3c-d)
1)4a-3b+c 2)-m-2n-k 3)0.19+4a-c 4)x+8y-z 5)m+9n-k-p 6)a-4b-3c+d