I.a) 1/4(4x-16) = 1/4 4x - 1/4 16 = x - 4
б) -1/3(3x+12) = -1/3 3x - 1/3 12 = -x - 4
II.a) c(a+1) - c = ca + c - c = caб) 1/4(8b-2) - 1 = 1/4 8b - 1/4 2 - 1 = 2b - 1 - 1 = 2b - 2
I.
a) 1/4(4x-16) = 1/4 4x - 1/4 16 = x - 4
б) -1/3(3x+12) = -1/3 3x - 1/3 12 = -x - 4
II.
a) c(a+1) - c = ca + c - c = ca
б) 1/4(8b-2) - 1 = 1/4 8b - 1/4 2 - 1 = 2b - 1 - 1 = 2b - 2