Question 454259
<pre>
use substitution method to determine whether the system of linear equations has no solution, one solution,or many solutions

2x - y =   8 ----- eq (i)
 x + 4y = 13 ----- eq (ii)

Again, this is a real LAUGH! Equation 1 can be easily solved for y, since the coefficient on y is - 1. Likewise, 
eq (ii) can be easily solved for x, as too has a coefficient of 1 on x. 

So, why on earth would someone choose to SOLVE for a variable that has created FRACTIONS - which most people hate,
and which we normally GET RID OF when solving an equation - when 2 perfectly-stated equations (i) & (ii), already have variables
with coefficients - 1 and 1? This ABSOLUTELY makes NO SENSE, at all!!! 

I know another person on this site, who has done the EXACT thing in some, maybe ALL, of her responses!! I wonder who taught them
these RIDICULOUS and NONSENSICAL solving techniques.

This may be one of the reasons why some people FEAR mathematics! I would, if I ever asked for help, and received this response!!</pre>