Answer:
(-8,1)
Explanation:
You can substitute one equation into the other to work this out.
Since y=2x+17, we can replace y in the first equation with 2x+17, giving a result of -x+2x+17=9.
From there, you can combine the x (-1x+2x=1x) to get x+17=9.
Subtracting 7 from both sides isolates x, leaving x=-8.
We can use the x value to work out the y by substituting it into either equation (I'm going to use the second one).
This gives y=2×-8+17, which can be solved to y=-16+17, and further to y=1.
This makes the point of intersection (-8,1), as those are the shared values.
**This involves simultaneous equations, which you may wish to revise. I'm always happy to help!