" (1) "(2)/(x)-(3)/(y)=15;(8)/(x)+(5)/(y)=77

Solve the following simultaneous equations. (2)/(x) - (3)/(y) = 15 , (8)/(x) + (5)/(y) = 77

Solve (20)/(x + y) + (3)/(x - y) = 7 and (8)/(x - y)- (15)/(x + y) = 5 .

Solve (20)/(x + y) + (3)/(x - y) = 7 and (8)/(x - y)- (15)/(x + y) = 5 .

Solve : {:((34)/(3x+4y)+(15)/(3x-2y)=5),((25)/(3x-2y)-(8.50)/(3x+4y)=4.5):}

If 1.5x=0.04y, then the value of ((y-x)/(y+x)) isi (730)/(77) (b) (73)/(77) (c) (7.3)/(77) (d) None of these

Find the products: (3/x-5/y)(9/(x^2)+(25)/(y^2)+(15)/(x y))

if y=x^((1)/(2))(5-2x)^((2)/(3))(4-3x)^(-(3)/(4))(77x)^(-(4)/(5)) then the value of (((dy)/(dx))/(y)) is

Solve the simultaneous equations. 2/x - 3/y = 15, 8/x + 5/y = 77

Find x and y when (7x-2y)/(xy)=5 (8x+7y)/(xy)=15