subract 2(k-4)-3(2k-1)

To simplify the expression, we can use the distributive property:

2(k-4) - 3(2k-1) = 2k - 8 - 6k + 3

Next, combine like terms:

2k - 8 - 6k + 3 = (2k - 6k) + (-8 + 3) = -4k - 5

Thus, the simplified expression is -4k - 5.