Answer:
Tyler grouped up 6-2 and 5-4 instead of grouping up the x terms.
6-2x + 5+4x=
2x+4x= ?
6 + 5 = 11
11- 2x + 4x =
-2x + 4x = 2x
2x + 11
Step-by-step explanation:
When multiplying two equations like this, you need to distribute. Distribute each term to get <span><span><span><span><span><span>3<span>x</span></span></span></span></span></span></span>

<span><span><span><span><span>+ <span>3</span></span></span></span></span></span>

<span><span><span><span>− <span>26</span></span></span></span></span>

<span><span><span>−<span>14</span></span></span></span>

<span><span>−<span>15</span></span></span>

<span>−<span>24x</span></span>+<span>3</span>
Answer:
242
Step-by-step explanation:
Instead of times you should use * to represent multiplication.
So, the expression is 4 + 34*7
We follow PEMDAS,
So first we multiply,
4 + 238
Now we add.
242
Answer:
32760 different schedules are possible.
Step-by-step explanation:
The order is important.
For example
Prague on Monday, Berlin on Tuesday, Liverpool on Wednesday and Athens on Thursday is a different schedule than Berlin on Monday, Prague on Tuesday, Liverpool on Wednesday and Athens on Thursday.
So we use the permutations formula to solve this question.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:

How many different schedules are possible?
Choose 4 cities among a set of 15. So

32760 different schedules are possible.