[8x+5y=9],[3x+2y<4]

Solve each of the following pairs of equations by the elimination method. 8x+5y=9 and 3x+2y=4.

Solve the following system of equations by using the method of elimination by equating the coefficients: 8x+5y=9,quad 3x+2y=4

{:(8x + 5y = 9),(kx + 10y = 8):}

{:(8x + 5y = 9),(kx + 10y = 8):}

{:(8x + 5y = 9),(kx + 10y = 18):}

8x + 5y = 9 , kx + 10 y = 15 .

If x and y satisfy the equations, 8x+ 5y = 9 and 3x+2y = 4 then y=……

Solve by cross-multiplication method. (i) 8x-3y=12,5x=2y +7 (ii) 6x+ 7y -11 =0, 5x+ 2y =13 (iii) (2)/(x)+(3)/(y) =5, (3)/(x) -(1)/(y) +9=0

Find the value of 27 x^3+\ 8y^3, if (i) 3x+2y=14 and x y=8 (ii) 3x+2y=20\ and x y=(14)/9