SOLUTION: This problem requires us to use the substitution method, or the elimination method. Which do you think is best and if you could explain the steps. y = 2/5x - 7 y = 2/5x + 4

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: This problem requires us to use the substitution method, or the elimination method. Which do you think is best and if you could explain the steps. y = 2/5x - 7 y = 2/5x + 4      Log On


   

Question 170305This question is from textbook Intro Algebra
: This problem requires us to use the substitution method, or the elimination method. Which do you think is best and if you could explain the steps.
y = 2/5x - 7
y = 2/5x + 4 This question is from textbook Intro Algebra

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
y=2/5x-7
y=2/5x+4 USING SUBTRACTION.
-----------------------
0=0-7+4
0=-3 NO UNIQUE SOLUTION FOR X OR Y.
IF PLOTTED THESE 2 LINES WOULD BE PARALLEL.
+graph%28+300%2C+200%2C+-26%2C+25%2C+-20%2C+20%2C+2x%2F5+-7%2C+2x%2F5+%2B4%29+ (graph 300x200 pixels, x from -26 to 25, y from -20 to 20, of TWO functions 2x/5 -7 and 2x/5 +4).