That is Identity Property of Addition.
Identity Property is a property that states that the sum of any number and zero is always the number you added to zero. This is also the case for multiplication by instead of adding zero, you are multiplying by one.
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Answer: $57
Step-by-step explanation:
It's like saying 6(x+4)=x-11.
Answer:
54.97
90
the colums add up to angle 1, which make angle 2 adjacent.
9-9=0
