" 14.If "(x)/(4)+(y)/(3)=(5)/(12)" and "(x)/(2)+y=1" then find the value of "(x+y)

If 3x+4y=12 and 4x+3y=9 , then find the value of x+y

If 3x+4y=12 and 4x+3y=9 , then find the value of x+y

Solve the pair of equations : (3)/(x) + (2)/(y) = 7 (5)/(x) - (4)/(y) = 13 Hence find the value of 27x - 12y .

If x=3 and y=4 , find the value of (15x) /(12y)

If x = 5/4 and y=(-1)/3 , then find the value of (x + y) xx (x-y) .

If 3x+2y=12 and x y=6 , find the value of 9x^2+4y^2

If ((2x-y)/(x+2y))=(1)/(2), then find the value of ((3x-y)/(3x+y))

If log_(12)18=x and log_(24)4=y then find the value of xy-(2x+5y)+4