Answer:
MP = 29
Explanation:
From the diagram
MP = MN + NP ( substitute values )
5y + 9 = 17 + 3y ( subtract 3y from both sides )
5y - 3y + 9 = 17 + 3y - 3y ( simplify )
2y + 9 = 17 ( subtract 9 from both sides )
2y + 9 - 9 = 17 - 9 , that is
2y = 8 ( divide both sides by 2 )
y = 4
Then
MP = 5y + 9 = 5(4) + 9 = 20 + 9 = 29