The complement = x
The angle we are finding = 3x + 26
Complementary angles are angles that add up to 90 degrees.
90 = x + 3x + 26
Combine like terms
90 = 4x + 26
Subtract 26 from both sides
64 = 4x
Divide both sides by 4
16 = x
The angle we are trying to find = 3(16) + 26 = 48 + 26 = 74 degrees