The measures or the three angles of a triangle are x-39, x-29, and x. Find the measure of each angle.

The three angles must add up to 180 degrees.

x - 39 + x - 29 + x = 180 Collect like terms on the left

3x - 68 = 180 Add 68 to both sides.

3x = 180 + 68

3x = 248

x = 248 / 3

x = 82.66667

Answer

x = 82,666667 for the largest angle

x - 29 = 53.666667 for the medium size angle

x - 39 = 43.666667 for the smallest size angle