How do you do this problem ?

Question

Solve the problem.
Two angles are said to be complementary if their sum is 90. If one angle measures (27) / (x) degrees, find the measure of its complement.

( 90 x - 27 ) / ( x)
( 90 x - 63) / (x)
27
63

Answer 1

Since you know the first angle is 27/x
and both angles must sum to 90,
your second angle = 90-27/x

The first answer is the right answer, since 90 - 27/x = (90x-27)/x

Answer 2

Subtract the first angle from 90 degrees.

90 - 27/x Multiply by x to get rid of the denominator if you choose.

90x - 27 is the answer.
I don't see this in the choices, but it is the answer.

Answer 3

90 - 27/x
= 90x/x - 27/x
= (90x - 27)/x