Question

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

(x+9)°
42°
104°

Answer 1

Explanation:

first do 104 + 42 it should be 146

second since it is x+9 do 146 - 189, it should be 43.

third check your work by doing 43 + 146

if it equals 189 then do 43 - 9, you should get 34

so x = 34