PLZ HELP ME ANSWER THIS NO INCORRECT PLS THANK YOU

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

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

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )