SOLUTION: How many solutions exist and how do I find the solution for y= 2x+3 y= -x-4 Thank you

Algebra ->  Linear-equations -> SOLUTION: How many solutions exist and how do I find the solution for y= 2x+3 y= -x-4 Thank you      Log On


   

Question 326929: How many solutions exist and how do I find the solution for
y= 2x+3
y= -x-4
Thank you
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The slopes of the two lines are not equal, therefore the two lines are not parallel and must intersect in a single point. Hence, one solution.

You have two equations where is equal to something. Set the two somethings equal to each other and solve for . Once you know computing the value of is a simple matter of substitution and arithmetic.

John