Knowing the properties of a parallelogram solve for the value of y. Show your work to receive full credit

y = 3.75

Explanation:

Solve:

9x - 15 = 5x - 3

9x - 5x = -3 + 15

4x = 12

x = 3

Solve for y:

3x + 4 = 4y - 2

3(3) + 4 = 4y - 2

9 + 4 = 4y - 2

13 + 2 = 4y

y = 15/4

y = 3.75

y = 15/4

Step-by-step explanation:

Parallelogram is a quadrilateral with opposite sides that are parallel and equal in length

Therefore,    9x - 15 = 5x - 3

And,               3x + 4 = 4y - 2

9x - 15 = 5x - 3, solve for x:

Add 15 to both sides:  9x = 5x +12

Subtract 5x from both sides: 4x = 12

Divide both sides by 4:  x = 3

Substitute found value for x into 3x + 4 = 4y - 2 and solve for y:

⇒ 3(3) + 4 = 4y - 2

⇒ 9 + 4 = 4y - 2

⇒ 13 = 4y - 2

Add 2 to both sides:  15 = 4y

Divide both sides by 4:  y = 15/4

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step-by-step explanation:

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