Question

find the angle whose supplement is 6 times its complement

Answer 1

Let the angle be x.

Supplement = 180 - x

Complement = 90 - x

180 - x = 6(90-x)

180 - x = 540 - 6x

-x + 6x = 540 - 180

5x = 360

x = 360÷5

=72

Answer 2

Here is the answer
Let the angle be x
It's supplement = 180 - x
It's complement = 90 - x
Now,
180 - x = 6(90 - x)
Solve this

Sorry it's 72