SOLUTION: Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. x − 3y = −11 4x + 3y = 31 Does it have o

Algebra ->  Linear-equations -> SOLUTION: Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. x − 3y = −11 4x + 3y = 31 Does it have o      Log On


   

Question 870744: Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution.
x − 3y = −11
4x + 3y = 31
Does it have one and only one solution,
infinitely many solutions or
no solution
find the solution if one exist?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Add the equations together,
x-3y%2B4x%2B3y=-11%2B31
5x=20
x=4
Then use either equation to solve for y
16%2B3y=31
3y=15
y=5