e) 8a - (6a - 2) = 8a - 6a + 2 = 2a + 2 = 2(a+1)
f) 3 (5-4x) + 10 = 15 - 12x + 10 = -12x + 25
g) 3 + 5y - 4 (2y+5) = 3 + 5y - 8y - 20 = -3y - 17
h) 5 (3b+4) - 2 (6-7b) = 15b+20-12+17b = 32b + 8 = 8(4b+1)
