What is the most efficient first step to isolate the variable term on one side of this equation? -9x = -4x + 5
Subtract 5 from both sides.
Add 5 to both sides.
Subtract 9x from both sides.
Add 4x to both sides.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?

The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?