1.

The cost of ball pen is ₹5 less than half of the cost of fountain pen. Write this statement as a linear equation in two variables

Answer»

Let the COST of fountain PEN be X and the cost of BALL pen be y.
So according to QUESTION the linear equation formed will be:
(x/2)-5=y
=>x/2=y+5
=>x=2*(y+5)
=>x-2y=10


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