Answer:
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Answer:
![|7m- 56| = 56 - 7m](https://tex.z-dn.net/?f=%7C7m-%2056%7C%20%3D%2056%20-%207m)
Step-by-step explanation:
Given
![|7m- 56|](https://tex.z-dn.net/?f=%7C7m-%2056%7C)
![m < 8](https://tex.z-dn.net/?f=m%20%3C%208)
Required
Rewrite the expression without absolute values
The first step is to check if the expression in |...| is positive or negative;
The question says m < 8,
This means the value of m could be 7, 6 ...
Let's assume m is 7
![7m - 56 = 7 * 7 - 56 = 49 - 56 = -7](https://tex.z-dn.net/?f=7m%20-%2056%20%3D%207%20%2A%207%20-%2056%20%3D%2049%20-%2056%20%3D%20-7)
This means that the expression
will give a negative value if ![m < 8](https://tex.z-dn.net/?f=m%20%3C%208)
So,
![|7m- 56| = -(7m - 56)](https://tex.z-dn.net/?f=%7C7m-%2056%7C%20%3D%20-%287m%20-%2056%29)
Open bracket
![|7m- 56| = -7m + 56](https://tex.z-dn.net/?f=%7C7m-%2056%7C%20%3D%20-7m%20%2B%2056)
Rearrange
![|7m- 56| = 56 - 7m](https://tex.z-dn.net/?f=%7C7m-%2056%7C%20%3D%2056%20-%207m)
<em>The expression can't be further simplified</em>
Answer:
28
Step-by-step explanation:
Answer:
1.true
2.false
3.true
4.true
5.true
6.fales
7.true
8.true
9.false
10.false
Step-by-step explanation:
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