10 points! High school algebra freshman please show work

find the equation of a line that passes thru (9,-6) and is parallel to y=5/3x-14

find the equation of a line passes thru (-1,4) and is perpindicular to y=1/5x+2

what is the vertex of the graph of y=lx-9l-4? (buy the way that IS NOT the number 91 <----- its like parathesis thing)

what is the value of x in the system of equations
{3x-y=13
{5x+2y=18


which ordered pair is a solution to the system
{y=2x-11
{x+4y=-17

what is the value of x in the system of equations
3x-y=13
5x+2y=18
Sol: multiply 1st eqn by 2 both sides , and add
=> 6x - 2 y + ( 5x +2y) = 26 + 18
=> 11 x = 44
=> x = 4
Answer