I need help with Algebra?

Find the solution set for the open sentence with the given replacement set.

15 x = 9, {5, 6, 7, 8}

Find the solution set for the open sentence with the given replacement set.

4y + 2 = 18, {4, 5, 6, 7}

Find the solution set for the open sentence with the given replacement set.

|2w 1| = |w + 7|, {2, 1, 3, 5}

Solve the word problem.

Milo must put 50 feet of fencing around her rectangular garden. The length of the garden is one foot longer than twice the width. Find the solution set for 2w + 2(2w + 1) = 50 given the replacement set {6, 7, 8, 9} to determine the width of the garden.

Cara drives for 4 hours at a rate of 45 miles per hour. Later, she drives for another 3 hours so that her total distance traveled for the day is 336 miles. Find the solution set for 4(45) + 3r given the replacement set {52, 53, 54, 55} to determine the rate at which Cara traveled during the second part of her trip.

If anyone actually wants to help, that'd be great.