T = 5x - 10 degrees
Let T' be the supplement angle of T.
Then:
T + T' = 180
==> 5x - 10 + T' = 180
==> T' = 180 - 5x + 10
= 190 - 5x
Then the supplement angle is (190-5x) degrees.
Now let...
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T = 5x - 10 degrees
Let T' be the supplement angle of T.
Then:
T + T' = 180
==> 5x - 10 + T' = 180
==> T' = 180 - 5x + 10
= 190 - 5x
Then the supplement angle is (190-5x) degrees.
Now let T'' be the complement angle of T:
Then,
T + T'' = 90
5x - 10 + T'' = 90
==> T'' = 90 - 5x + 10
= 100 - 5x
Then the complement angle is (100 - 5x) degrees