Answer:
4(3x - 3) + 3 - 3x, 9x - 9, and 9(x - 1) are all equivalent expressions.
Explanation:
first we simplify 4(2x + x – 3) – 3x + 3.
1. combine like terms: 4(3x - 3) + 3 - 3x
if you use the commutative property for the numbers outside the parenthesis you can already see that 4(3x - 3) + 3 - 3x is equivalent.
2. distributive property: 12x - 12 + 3 - 3x
3. combine like terms again: 9x - 9
this shows that 9x - 9 is another equivalent expression.
then 9(x-1) is literally just 9x - 9 factored so yea