In a triangle, the measure of the first angle is four times the measure of the second angle. The measure of the third angle is 84 degrees more than the second angle. what is the measure of the first angle?

Answer 1

second angle --- x
first angle ------ 4x
third angle ----- x+84

x + 4x + x+84 = 180

you finish it

Answer 2

Thanks for your help Reiny.