SOLUTION: how to solve the following problem by substitution x+y= 3 x+y= -2

Algebra ->  Coordinate-system -> SOLUTION: how to solve the following problem by substitution x+y= 3 x+y= -2      Log On


   

Question 710254: how to solve the following problem by substitution
x+y= 3
x+y= -2
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Solve the first equation for y in terms of x. Substitute the resulting expression in x for y in the second equation. You will have an equation in x, solve it for x. If you obtain an absurd result, then the solution set of the system is the empty set.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism