Please! my friend just need help with this.. there is 5 thats she needs answers to.. Write the equation of the line fully simplified slope-intercept form.

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

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

How do i put 3(x+7) in distributive property