Archive
3rd of March 2017
Mathematics
Q:

For what value of 'm', the linear equation 3x-my=5 has equal values of (x,y) for its solution? (2 marks)

Shyam Soman.s - CBSE - Class IX

Friday, March 03, 2017 at 15:33:PM

A:

begin mathsize 16px style 3 straight x minus my equals 5
For space equal space values space of space straight x space and space straight y comma space we space have space straight x equals straight y
Thus comma space we space have
3 straight x minus mx equals 5
rightwards double arrow mx equals 3 straight x minus 5
rightwards double arrow straight m equals fraction numerator 3 straight x minus 5 over denominator straight x end fraction comma space straight x not equal to 0 end style

Friday, March 03, 2017 at 17:44:PM