Which is the first step in solving x - 4 = 4
Add 4 to the left side.
Subtract 4 from the left side.
Subtract 4 from both sides.
Add 4 to both sides.

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

Me. i can't figure out this question. give an explanation too. .