Question

For simultaneous equation in x and y, if Dx=49 Dy=-63 D=7,then y=​

Answer 1

Answer:

Given - D = 7 Dx = 49 Dy = -63 Value of x can be calculated by - x = Dx / D x = 49 / 7 x = 7 Value of y can be calculated by - y = Dy / D y = -63 / 7 y = -9