$\"\"$

The given angle is $\"\"$ ; $\"\"$

$\"\"$ are complementary angles.

$\"\"$ (Sum of the complementary angles is $\"\"$ )

$\"\"$ (Substitute $\"\"$ ) $\"\"$

$\"\"$ (Subtract $\"\"$ from each side)

$\"\"$ (Apply commutative property of addition: $\"\"$ )

$\"\"$ (Apply additive inverse property: $\"\"$ )

$\"\"$ (Apply additive identity property: $\"\"$ )

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

The angle $\"\"$ .