Final answer:
To simplify the expression, distribute the 3 and combine like terms.
Step-by-step explanation:
To simplify the expression 4x+3(2x -1) -4x, we can use the distributive property to multiply 3 with each term inside the parentheses:
4x + 3 * 2x - 3 * 1 - 4x
Next, we can combine like terms:
4x + 6x - 3 - 4x
Combining the x terms and the constant terms, we get:
6x - 4x - 4x - 3
Finally, combining like terms again:
6x - 8x - 3
Which simplifies to: -2x - 3