Answer:
![y = 2x - 5](https://tex.z-dn.net/?f=y%20%3D%202x%20-%205)
Step-by-step explanation:
![y = mx + b](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b)
We need to leave y-term as the subject of equation.
![- 4y = 20 - 8x](https://tex.z-dn.net/?f=%20-%204y%20%3D%2020%20-%208x)
Move 8x to subtract.
![y = \frac{20 - 8x}{ - 4}](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B20%20-%208x%7D%7B%20-%204%7D%20)
Pull the negative out of 4.
![y = - \frac{20 + 8x}{4}](https://tex.z-dn.net/?f=y%20%3D%20%20-%20%20%5Cfrac%7B20%20%2B%208x%7D%7B4%7D%20)
Simplify
![y = - \frac{20}{4} + \frac{8x}{4} \\ y = - 5 + 2x](https://tex.z-dn.net/?f=y%20%3D%20%20-%20%20%5Cfrac%7B20%7D%7B4%7D%20%20%2B%20%20%5Cfrac%7B8x%7D%7B4%7D%20%20%5C%5C%20y%20%3D%20%20-%205%20%2B%202x)
Swap x-term and constant.
![y = 2x - 5](https://tex.z-dn.net/?f=y%20%3D%202x%20-%205)
Answer:
7x+6y=2
Step-by-step explanation:
All you have to do is add both of the equations together.
Referring to the above 5x=13
Then x=13/5=2.6
For y
2(2.6)+2y=0
Y= -5.2/2=-2.6
X=2.6
Y= -2.6
Answer:
the first one i believe
Step-by-step explanation:
hope this helps
Answer: 30 adult tickets and 7 children's tickets