[(6)/(x+y)=(7)/(x-y)+3],[(1)/(2(x+y))=(1)/(3(x-y))]

(dy)/(dx)=(3y-x+7)/(x-7y-3)

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

(dy) / (dx) = (2x-6y + 7) / (x-3y + 4)

(x)/(2) - ( y )/(9) = 6, ( x) /( 7) + ( y ) /(3) = 5 .

If (x)/(y)=(6)/(5), then the value of ((6)/(7)-(5x-y)/(5x+y)) is equal to (a) (1)/(7)( b) (2)/(7)(c)(3)/(7) (d) (4)/(7)

Find the values of x and y from each of the following matrix equation : (i) [{:(x+y),(x-y):}]=[(3)/(1)](ii) [{:(x+y,7),(0,2x):}]=[{:(-1,7),(0,6):}]

Find the values of x and y from each of the following matrix equation : (i) [{:(x+y),(x-y):}]=[(3)/(1)](ii) [{:(x+y,7),(0,2x):}]=[{:(-1,7),(0,6):}]

If x=(1)/(3) and y=(6)/(7) then xy=(y)/(x)= ______.

Factorize each of the following algebraic expressions: 6x(2x-y)7y(2x-y)2r(y-x)+s(x-y)7a(2x-3)+3b(2x-3)9a(6a-5b)-12a^(2)(6a-5b)

Simplify (i) (6 x-2 y)+(3 x+4 y) ii) (x-2 y)-(2 x-y) iii) (5+3 x)+(3-2 x) iv) (4 x-2 y)-(6 x-7 y)