The equivalent expression of
is 
<h3>How to determine the
equivalent expression?</h3>
The complete question is in the attached image
The expression is given as:

Subtract 11 from both sides of the equation

This gives

Hence, the equivalent expression of
is 
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Answer:
Isosceles and scalene triangles can both be obtuse.
Answer:
t=-5
Step-by-step explanation:
Acute: The angle is LESS than 90 Degrees
Obtuse: The angle is MORE than 90 Degrees
Right: The angle is EXACTLY 90 Degrees