To make y the subject, we must move everything to one side and y on the other.

Good day and I hoped that helped!
1)
Reasons:
- Given
- Alternate Exterior
- Alternate Interior
- Substitution
2) Reasons
-Given
- Linear Pair
- Alternate Interior
- Substitution
Answer:
4x + y = 15 or y = -4x + 15
Step-by-step explanation:
7 = 2[-4] + b
-8
15 = b

If you want it in <em>Standard </em><em>Form</em>:
y = -4x + 15
+4x +4x
___________
4x + y = 15 >> Line in <em>Standard Form</em>
I am joyous to assist you anytime.
Answer: The starting time is 2:27 and finishing time is 7:09.
Step-by-step explanation: It is given that Ben started from 4th street and he finished at 98th street.
Also, at 3:00, he was on 15th street and at 4:30, he was on 45th street.
That is, time taken to cover (45-15), i.e., 30 streets is 90 minutes, so the time taken to cover 1 street is 3 minutes.
Therefore, Ben covers distance from one street to second in 3 minutes. Since he started from 4th street, and there are 11 streets to cover between 4 and 15, so Ben's starting time was (3:00 - 3×11 min) = 2:27.
And his finishing time was (4:30 + 3×53 min) = 7:09.
Again, the equation that tells us on what street 'N' he was after time 'T' of his starting can be written as

Thus, the starting and finishing time was 2:27 and 7:09 respectively.