I NEED HELP PLEASE!!
Solve the equation for x. For each step, identify the property used to convert the equation.

Part A: 18 = 6(2x - 8)

Part B: 8 + 3b = -13

Part C: x-3 / 4= 12

Part D: 14 + 3n = 8n - 3 (n - 4)

Part E: 22x + 11 = 4x - 7

Afireworks display is launched from a platform 10 feet above ground with an initial upward velocity of 70 feet per second. the height of the fireworks above ground after t seconds is given by the equation h = –16t2 + 70t + 10, where h is the height of the fireworks in feet and t is the time in seconds after they are launched. what is the maximum height of the fireworks display, to the nearest foot?