An angle is 30 degrees less than 5 times it's complement. Find the angle.

An angle is 30 degrees less than 5 times it's complement. Find the angle.

Let the angle be a. The complement of a is 90 - a. We're given the following equation:
a = 5(90 - a) - 30 <-- Less means we subtract

Multiplying though, we get:
a = 450 - 5a - 30
a = 420 - 5a

Typing this equation into our search engine, we get:
a = 70