Graphs of Linear Equations

For what value of \(m\) will the system of equations $$18x - 72y + 13 = 0$$ and $$7x - my - 17 = 0$$ have no solution?...

Find the coordinates of the points where the graph of the equation $$57x - 19y = 399$$ cuts the coordinate axes....

The cost of 2 pencils and 3 pens is ₹55 and the cost of 7 pencils and 2 pens is ₹65. What is the total price (in ₹) of o...