Angle measurement?

Question

Solve this exercise using the fact that the sum of the measures of the three angles of a triangle is

180°.

In a​ triangle, the measures of the three angles are​ x, x-6, x+18

What is the measure of each​ angle?

Answer 1

So sum the three angles and set the sum to 180^o:

x + x - 6 + x + 18 = 180

3x + 12 = 180

Solve for x, then plug that value into the equation for each angle to find their measures.