Answer:
w = 21
Step-by-step explanation:
30 * 14 = 20w
420 = 20w
w = 21
The missing coefficient of n in n + 8 is 9 after adding like terms which is 2n and 7n.
<h3>What is an expression?</h3>
It is defined as the combination of constants and variables with mathematical operators.
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We have an expression:
= 2n + (7n + 8)
After adding like terms:
9n + 8
The coefficient of n in n + 8 is 9
Thus, the coefficient of n in n + 8 is 9 after adding like terms which is 2n and 7n.
Learn more about the expression here:
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Since each shelf can hold 16 books and there are 2 shelves, both shelves can hold a total of 32 books. Since he is already adding 24 books, he can add 32- 24 = 8 more books.
9x - 2y ......................hope i helped
Answer:
X=9 Y= 3
Step-by-step explanation: