Assignment: 
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Answer: 
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Explanation: 
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Note: 
[ Step One ] Multiply Both Sides By 9

[ Step Two ] Simplify

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Answer: I believe those would be opposite angles (aka vertically opposite angles).
Answer:
-51
Step-by-step explanation:
PEMDAS suggests you start with parenthesis
10+9•(-3)2-(7)
10-(27)2-(7)
10-54-7
-51
Answer:
My answer is Yes
Step-by-step explanation: