Answer:
21
Step-by-step explanation:
![4x + 24 = 7x - 49 \\ then \: collect \: the \: same \: variable \\ 4x - 7x = - 49 - 24 \\ x = - 63 \div - 3 = 21](https://tex.z-dn.net/?f=4x%20%2B%2024%20%3D%207x%20-%2049%20%20%5C%5C%20then%20%5C%3A%20collect%20%5C%3A%20the%20%5C%3A%20same%20%5C%3A%20variable%20%5C%5C%204x%20-%207x%20%3D%20%20-%2049%20-%2024%20%5C%5C%20x%20%3D%20%20-%2063%20%5Cdiv%20%20-%203%20%3D%2021)
To solve for
![\frac{1}{2}- \frac{1}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D-%20%5Cfrac%7B1%7D%7B10%7D%20)
You first need to find a common denominator.
To do so, you need to make both denominators 10 by multiplying the top and bottom of
![\frac{1}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20)
by 5
![\frac{5}{10}- \frac{1}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B10%7D-%20%5Cfrac%7B1%7D%7B10%7D%20)
=
![\frac{4}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B10%7D%20)
Reduce by dividing both the top and bottom by 2
Your answer is
Communicative Property: (5+7) +3
Associative prop: (3+5) +7 or (3+7) +5
And the last one, I don’t fully understand what it is asking, but I believe it is asking for the answer which would be 15
Answer:
2 5/8
Step-by-step explanation:
simple met... I mean math :)
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