x और y के लिए हल करें: (y+7)/(5)=(2y-x)/(4)+3x-5 (7-5x)/(2)+(3-4y)/(6)=5y -18 | 9 | एक साथ लाइन...

(x-4)(x-3)=(x-6)(x-5) (y-9)(y-3)= (y-4)(y-3)

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

(4)/(x)+5y=7 and (3)/(x)+4y=5

Simplify: (2x + 5y)(3x + 4y) - (7x + 3y)(2x + y)

Solve for x and y : x+(y)/(4)=11," "(5x)/(6)-(y)/(3)=7

Add the following (8)/(5)x+(11)/(7)y+(9)/(4)xy,-(3)/(2)x-(5)/(3)y-(9)/(5)xy

Simplify : (i) (5x - 9y) - (-7x + y) (ii) (x^(2) -x) -(1)/(2)(x - 3 + 3x^(2)) (iii) [7 - 2x + 5y - (x -y)]-(5x + 3y -7) (iv) ((1)/(3)y^(2) - (4)/(7)y + 5) - ((2)/(7)y - (2)/(3)y^(2) + 2) - ((1)/(7)y - 3 + 2y^(2))

((x^(5y-3)xx x^(3-2y))/(x^(4y-6)xx x^(2y-9)))^(-4/3)= ______