If r=-3, then it would be -3-12 which equals -15
Answer:
x+y=0 and 3x-2y=10
Step-by-step explanation
Let the numbers be x and y.
The sum of the two numbers is 0
![\implies \: x + y =0](https://tex.z-dn.net/?f=%5Cimplies%20%5C%3A%20x%20%2B%20y%20%3D0%20)
Letting the smaller number be y and the
larger number be x:
twice the smaller number
![\implies \: 2y](https://tex.z-dn.net/?f=%20%5Cimplies%20%5C%3A%202y)
Also, 3 times the larger number
![\implies \: 3x](https://tex.z-dn.net/?f=%5Cimplies%20%5C%3A%203x)
Now ,twice the smaller number subtracted from 3 times the larger number is 10.
![\implies \: 3x - 2y = 10](https://tex.z-dn.net/?f=%5Cimplies%20%5C%3A%203x%20-%202y%20%3D%2010%20)
Therefore the equations are
![x + y =0](https://tex.z-dn.net/?f=x%20%2B%20y%20%3D0%20)
and
![3x - 2y =10](https://tex.z-dn.net/?f=3x%20%20-%202y%20%3D10%20)
Answer:
3
Step-by-step explanation:
![\frac{h^{2}-1 }{h+3}](https://tex.z-dn.net/?f=%5Cfrac%7Bh%5E%7B2%7D-1%20%7D%7Bh%2B3%7D)
![\frac{5^{2} -1}{5+3}](https://tex.z-dn.net/?f=%5Cfrac%7B5%5E%7B2%7D%20-1%7D%7B5%2B3%7D)
![\frac{25-1}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B25-1%7D%7B8%7D)
![\frac{24}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B24%7D%7B8%7D)
3
After I explain the procedure in full detail, you'll be able to generate
your own work. Here it is.
To find the greatest common factor of two numbers:
1). List all of the factors of the first number.
2). List all of the factors of the second number.
3). Scan both lists, and find factors that are on BOTH lists.
These are the COMMON factors. Write them down in a short list.
4). Scan the short list. Find the biggest number on it.
That's the Greatest Common Factor.
OK, I'll go through the first one in your picture . . . 24 and 42 :
1). Factors of 24: <em>1, 2, 3,</em> 4,<em> 6,</em> 8, 12, 24
2). Factors of 42: <em>1, 2, 3, 6,</em> 7, 14, 21, 42
3). Short list: <em>1, 2, 3, 6</em>
4). Biggest number on the short list:<em> <u>6</u> </em>
Answer:
4
Step-by-step explanation: