The awnser is (-1+3/x-3/x2+1/x3 )
If y=8-x then you can plug that into the equation like 7=2-(8-x). When you distribute the equation becomes 7=2-8+x. Once you combine like terms the equation becomes 7=-6+x. Then you subtract 6 from both sides, which gives you 13=x.
To find y just put 13 where x was in the first equation. Y=8-13.
Y=-5
X=13
Answer:


Step-by-step explanation:
The area of a rectangle is given by the product of its length and width.

If we knew the value of the area, we would not be able to know any of its dimensions without being given other piece of information. We can only make assumptions.
The question states the area of the rectangular patio is 3x-6 units, i.e.

We know the product of two quantities results 3x-6, so we can factor that expression to have a possible combination between l and w. Factoring by 3:

We can say that

It can be said also

These are not the only possible combinations, but they are as simple as possible
Answer: £450
Step-by-step explanation:
If they bought 2 tickets, they could get an extra ticket for free. As there are three of them, they would buy 2 tickets, get one for free and then buy another ticket to make it four.
In that case they would have only paid for 3 tickets.
The total cost of 3 tickets is:
= 600 * 3
= £1,800
The 4 of them would therefore have to pay:
= 1,800 / 4
= £450