Answer:
![2.\ 9(3x) = 27x](https://tex.z-dn.net/?f=2.%5C%209%283x%29%20%3D%2027x)
![3.\ \frac{1}{2}(10x) + 7 - 3 = 5x + 4](https://tex.z-dn.net/?f=3.%5C%20%5Cfrac%7B1%7D%7B2%7D%2810x%29%20%2B%207%20-%203%20%20%3D%205x%20%2B%204)
![4.\ -5(4x) = -20x](https://tex.z-dn.net/?f=4.%5C%20-5%284x%29%20%3D%20-20x)
![5.\ 10 - 2 (8x) - 3 = 7 - 16x](https://tex.z-dn.net/?f=5.%5C%2010%20-%202%20%288x%29%20-%203%20%3D%207%20-%2016x)
![6.\ 3(7x) + 3 (-5) = 21x -15](https://tex.z-dn.net/?f=6.%5C%203%287x%29%20%2B%203%20%28-5%29%20%3D%2021x%20%20-15)
Step-by-step explanation:
Required
Solve each expression
![1.\ 10+x+ 8](https://tex.z-dn.net/?f=1.%5C%2010%2Bx%2B%208)
Start by collecting like terms
![10+ 8+x](https://tex.z-dn.net/?f=10%2B%208%2Bx)
Add like terms
![18+x](https://tex.z-dn.net/?f=18%2Bx)
The expression can't be solved further
Hence;
![2.\ 9(3x)](https://tex.z-dn.net/?f=2.%5C%209%283x%29)
Open the bracket
![9 * 3x](https://tex.z-dn.net/?f=9%20%2A%203x)
![27x](https://tex.z-dn.net/?f=27x)
The expression can't be solved further
Hence, ![9(3x) = 27x](https://tex.z-dn.net/?f=9%283x%29%20%3D%2027x)
![3.\ \frac{1}{2}(10x) + 7 - 3](https://tex.z-dn.net/?f=3.%5C%20%5Cfrac%7B1%7D%7B2%7D%2810x%29%20%2B%207%20-%203)
Open bracket
![\frac{1}{2} * 10x + 7 - 3](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%2A%2010x%20%2B%207%20-%203)
![5x + 7 - 3](https://tex.z-dn.net/?f=5x%20%2B%207%20-%203)
![5x + 4](https://tex.z-dn.net/?f=5x%20%2B%204)
The expression can't be solved further;
Hence, ![\frac{1}{2}(10x) + 7 - 3 = 5x + 4](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%2810x%29%20%2B%207%20-%203%20%20%3D%205x%20%2B%204)
![4.\ -5(4x)](https://tex.z-dn.net/?f=4.%5C%20-5%284x%29)
Open the bracket
![-5 * 4x](https://tex.z-dn.net/?f=-5%20%2A%204x)
![-20x](https://tex.z-dn.net/?f=-20x)
The expression can't be solved further
Hence, ![-5(4x) = -20x](https://tex.z-dn.net/?f=-5%284x%29%20%3D%20-20x)
![5.\ 10 - 2 (8x) - 3](https://tex.z-dn.net/?f=5.%5C%2010%20-%202%20%288x%29%20-%203)
Open Bracket
![10 - 2 *8x - 3](https://tex.z-dn.net/?f=10%20-%202%20%2A8x%20-%203)
![10 - 16x - 3](https://tex.z-dn.net/?f=10%20-%2016x%20-%203)
Collect like terms
![10 - 3 - 16x](https://tex.z-dn.net/?f=10%20-%203%20-%2016x)
![7 - 16x](https://tex.z-dn.net/?f=7%20-%2016x)
The expression can't be solved further
Hence, ![10 - 2 (8x) - 3 = 7 - 16x](https://tex.z-dn.net/?f=10%20-%202%20%288x%29%20-%203%20%3D%207%20-%2016x)
![6.\ 3(7x) + 3 (-5)](https://tex.z-dn.net/?f=6.%5C%203%287x%29%20%2B%203%20%28-5%29)
Open both brackets
![3*7x + 3 * -5](https://tex.z-dn.net/?f=3%2A7x%20%2B%203%20%2A%20-5)
![21x -15](https://tex.z-dn.net/?f=21x%20%20-15)
The expression can't be solved further
Hence, ![3(7x) + 3 (-5) = 21x -15](https://tex.z-dn.net/?f=3%287x%29%20%2B%203%20%28-5%29%20%3D%2021x%20%20-15)
Answer:
Step-by-step explanation:
<u>Let the regular price is x, then:</u>
- (x - 4)*5 = 20
- x - 4 = 20/5
- x - 4 = 4
- x = 4 + 4
- x = 8
You have to use point slope form
point slope form: y - y1 = m(x - x1)
x1 and y1 are the x and y values of the given point
m is the slope
so, just plug in the numbers:
y-3 = -2(x + 8)
now solve to put into slope intercept form (y = mx + b)
y-3 = -2x - 16
ANSWER: y = -2x -13
Answer:
![18x^{2} -15x+2](https://tex.z-dn.net/?f=18x%5E%7B2%7D%20-15x%2B2)
Step-by-step explanation:
![18x^{2} -12x-3x+2=\\18x^{2} -15x+2](https://tex.z-dn.net/?f=18x%5E%7B2%7D%20-12x-3x%2B2%3D%5C%5C18x%5E%7B2%7D%20-15x%2B2)
plz mark brainliest