Question 281241
Sure, graph each line one at a time
You need two points to plot a line. Find two points that satisfy each equation, plot those points and draw the line.
The point where the two lines intersect is the 'solution'.

For me, it is always easy to use 0 as one of the coordinates.
{{{3x-5y=-9}}}
let x =0
{{{3*0 - 5y = y}}}
{{{-5y=9}}}
{{{-y = 9/5}}}
{{{y = -9/5}}}
so one point is (0,-9/5)
Let y=0
{{{3x-5*0 = -9}}}
{{{3x=-9}}}
{{{x=-3}}}
so another point is (-3,0)
Plot those two points and draw the line

Now use the same idea to plot the other line
{{{5x-6y=-8}}}
let x=0
then y = -8/6 = -4/3
(0,-4/3)
let y=0
then x = -8/5
the other point is (-8/5,0)
Plot those two and draw another line.
Then look for the point where they intersect

I bet you can do it now!
Let me know if you still have questions