4. (01.01)
of the following options, what could be a possible first step in solving the equation 8x + 3 = 2x - 15? (5 points)

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

What is the distance between (–2 1/2,-3) and (1, –3)?

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