Question

If the measure of angle T is (123-5x)º, what is the measure of its complement?

Answer 1

+two angles 'compliment' each other if they sum up 90 degrees.

so here let the compliment be angle S
so S +T = 90
or, S + 123-5x = 90
or, S = 5x-33

Answer 2

90 - (123-5x) is the measure of its compliment...