Question

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

Answer 1

Let cost of ball pen be x and of fountain pen be y.

Thus equation will be

x = y/2 - 5

=> x = (y - 10)/2

=> 2x = y - 10

=> 2x - y + 10 = 0 {answer}

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