Answer:
1). ![x=\frac{5}{170}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B5%7D%7B170%7D)
2). ![x=\frac{1}{12}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B1%7D%7B12%7D)
Step-by-step explanation:
(1.) ![\frac{5}{10x}-9=8](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B10x%7D-9%3D8)
adding 9 on both sides we get
![\frac{5}{10x}=9+8](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B10x%7D%3D9%2B8)
![\frac{5}{10x}=17](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B10x%7D%3D17)
![5=17 \times 10x](https://tex.z-dn.net/?f=5%3D17%20%5Ctimes%2010x)
![x=\frac{5}{170}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B5%7D%7B170%7D)
(2.) ![\frac{3}{4x}-3=1+\frac{5}{12x}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4x%7D-3%3D1%2B%5Cfrac%7B5%7D%7B12x%7D)
![\frac{3}{4x}-\frac{5}{12x}=1+3](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4x%7D-%5Cfrac%7B5%7D%7B12x%7D%3D1%2B3)
![\frac{9-5}{12x}=4](https://tex.z-dn.net/?f=%5Cfrac%7B9-5%7D%7B12x%7D%3D4)
![\frac{4}{12x}=4](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B12x%7D%3D4)
![12x=1](https://tex.z-dn.net/?f=12x%3D1)
![x=\frac{1}{12}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B1%7D%7B12%7D)
Answer:
2
Step-by-step explanation:
Answer:
D=1/2
Step-by-step explanation:
Multiply the numbers
Subtract the numbers
Combine like terms
put 1/2 to the two parts of the equation
last but not least, simplify
102 multiply 5 is equally to 610 so that's gonna be 6.10 I think
10y + 20 is an equivalent expression