Write the algebraic expression for “twice a number n decreased by seven”
1 answer:
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Answer:
Yes, Sierra is correct
Step-by-step explanation:
Given
Required
Is she correct
The right parenthesis has 4 + 5.
This can be simplified as:
So, we have:
The left parenthesis has y + 7.
This cannot be simplified because y is a variable and 7 is a number.
<em>Hence, Sierra is correct.</em>