Question

The cost of a pencil is ₹4 less than four times the cost of a pen. Express the statement as a linear equation in two variables​

Answer 1

Let the cost of pencil=Y

Cost of pen=X

Therefore ans is

Y=4X-4

Answer 2

Using the concept of linear equation in two variables

Let cost of pencil be X

Let cost of pen be Y

So By the given condition,

Cost of pencil is 4 less than four time of the cost of pen

X = 4Y - 4

X - 4Y = -4

Hope it helps

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