Question

The cost of a notebook is Rs 5 less than twice the cost of a pen. Write this statement as a linear equation in two variables​

Answer 1

Step-by-step explanation:

Sol: Let the cost of a notebook = Rs x The cost of a pen = y According to the condition, we have [Cost of a notebook] = 2 × [Cost of a pen] i.e. [x] = 2 × [Y] or x = 2y or x – 2y = 0 Thus, the required linear equation is × – 2y = 0.