SOLUTION: 2 part question. I have the first part of the question. I need help with the 2nd part. How do you write a system of linear equations in two variables? ( 2nd part)Explain in w

Algebra ->  Linear-equations -> SOLUTION: 2 part question. I have the first part of the question. I need help with the 2nd part. How do you write a system of linear equations in two variables? ( 2nd part)Explain in w      Log On


   

Question 1077392: 2 part question. I have the first part of the question. I need help with the 2nd part.
How do you write a system of linear equations in two variables?
( 2nd part)Explain in words and by using mathematical notation in an equation. How do I explain in words?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
I would use the example of speed in flat water and in a current. There are two variables, and if one is going downstream, the two are added, and if one is going upstream, the current is subtracted. By having two equations in two unknowns, we are able to determine what each unknown is.
x+c=8
x-c=2
2x=10
x=5
c=3