First of all, you have to distribute the term in front of the parenthesis into the term(s) inside of it. In this case, “5-” is not a term because the “-” symbol is following it. However, we can distribute that particular symbol into the parenthesis. We then have 5+ 28 because - x - = +, and 5 x 7 - 5 = 28.
This is assuming the sum of the two angles produces a straight line, or a 180° angle. Since the given angle is 121°, angle w must be 180-121, which is 59<span>°.</span>
