Question

The measures of the angles of a triangle are shown in the figure below. Solve for x.

50°
(6x-18)°
70°

Answer 1

x=13

Explanation:

We add all the numbers together, and all the variables

6x-78

We move all terms containing x to the left, and all other terms to the right

6x=78

x=78/6

which should equal 13