SOLUTION: To Whomever can assist, Thank you! I need to use either the substitution method or the elimination by addition method to solve the system, whichever seems more appropriate. 5x

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: To Whomever can assist, Thank you! I need to use either the substitution method or the elimination by addition method to solve the system, whichever seems more appropriate. 5x      Log On

Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo .
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

Question 60144This question is from textbook Elementary and Intermediate Algebra
: To Whomever can assist, Thank you!
I need to use either the substitution method or the elimination by addition method to solve the system, whichever seems more appropriate.

5x - 2y = 1
10x - 4y = 7This question is from textbook Elementary and Intermediate Algebra

Answer by funmath(2873) About Me  (Show Source):
You can put this solution on YOUR website!
Use either the substitution method or the elimination by addition method to solve the system, whichever seems more appropriate.

E1: 5x - 2y = 1
E2: 10x - 4y = 7
Elimination by addition makes more sense.
Multiply E1 by -2 and add E1+E2 to eliminate one of the variables.
E1: -2(5x-2y)=-2(1)---> -10x+4y=-2
:
-10x+4y=-2
10x-4y=7
___________
0+0=5
0=5
Both variables were eliminated and 0 does not = 5, there is no solution.
:
We call this an inconsistent-independent system. Graphically it's two lines that are parallel and never intersect.
:
Happy Calculating!!!