" 13."(0)(7)/(x)+(8)/(y)=2,(2)/(x)+(12)/(y)=20

Solve (7)/(x) + (8)/(y) = 2 and (2)/(x) + (12)/(y) = 20 .

Solve (7)/(x) + (8)/(y) = 2 and (2)/(x) + (12)/(y) = 20 .

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

( 9)/(x) - ( 4)/( y) = 8 , ( 13)/(x) + ( 7)/(y) = 101 ( x ne 0, y ne 0 )

Add the algebraic expressions: (11)/(2)xy+(12)/(5)y+(13)/(7)x,-(11)/(2)y-(12)/(5)x-13xy

{:((x)/(2) + y = 0.8),((7)/(x + (y)/(2)) = 10):}

{:((x)/(2) + y = 0.8),((7)/(x + (y)/(2)) = 10):}

Add the algebraic expressions: (11)/2x y+(12)/5y+(13)/7x ,\ -(11)/2y-(12)/5x-13\ x y

If 2((1,3),(0,x))+((y,0),(1,2))=((5,6),(1,8)) , then find the value of x+y.

From the equation : 2((1,3),(0,x))+((y,0),(1,2))=((5,6),(1,8)) find x-y