I'm currently in college and taking college algebra. We're learning about solving equations by the substitution method and the addition method. If I could throw 2 problems out there and what I've done so far, maybe someone could help me break them down and finish working them out?

Problem 1: Find the equation, in standard form, with all integer coefficients, of the line perpendicular to 4x - 2y = 10 and passing through (8,5). I'm completely lost on this and don't even know where to begin.

Problem 2: Solve the system of equations using the substitution method. If the answer is a unique solution, present it as an ordered pair: (x,y). If not, specify whether the answer is no solution of infinitly many solutions.

2x + y = 7

9x + 2y = -1

I took the 1st equation to solve then figure into the second. 2x + y = 7

y = -2x + 7

Sadly, I am so lost in this class that is all I was able to come up with.

If anyone can help, I would greatly appreciate it.

Thank you.