[2x-(3y)/(4)=3],[5x=2y+7]

Solve : (7 + x)/(5) - (2x - y)/(4) = 3y - 5 (5y - 7)/(2) + (4x - 3)/(6) = 18 - 5x

{:(2x - 4y = 3),(5x - ky = 7.5):}

{:(2x - 4y = 3),(5x - ky = 7.5):}

If [2x+y,4x,5x-7 4x]=[7 7y-13 y x+6] , then the value of x+y is x=3 , y=1 (b) x=2 , y=3 (c) x=2 , y=4 (d) x=3 , y=3

5x-[4y-{7x-(3z-2y)+4z-3(x+3y-2z)}]

Multiply : -8/5x^2y z^3\ b y\ -3/4x y^2z (ii) 3/(14)x^2y \ by\ 7/2x^4y

Solve for x and y : (y+7)/(5)=(2y-x)/(4)+3x-5 (7-5x)/(2)+(3-4y)/(6)=5y-18

Simplify: (2x+3y)(3x4y)-(7x+3y)(x+2y)