What is the value of x when 12x - 6 = -3(x - 8)?

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents