(1)/(2(2x+3y))+(12)/(7(3x-2y))=(1)/(2);quad (7)/((2x+3y))+(4)/((3x-2y))=2

Solve:(1)/(2(2x+3y))+(12)/(7(3x-2y))=(1)/(2)(7)/(2x+3y)+(4)/(3x-2y)=2 where 2x+3y!=0 and 3x-2y!=0

Solve the following pairs of equations by reducing them to a linear pair :- 1/(2(2x+3y))+12/(7(3x-2y))=1/2, 7/(2x+3y)+4/(3x-2y)=2 .

Sol v e :1/(2(2x+3y))+(12)/(7(3x-2y))=1/2 7/(2x+3y)+4/(3x-2y)=2 where 2x+3y!=0a n d3x-2y!=0.

(1) (5)/(2x)+(2)/(3y)=7,(3)/(x)+(2)/(y)=12

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))

On comparing the ratios (a_(1))/(a_(2)),(b_(1))/(b_(2)) and (c_(1))/(c_(2)), find out whether the following pair of linear equations are consistent,or inconsistent.(i) 3x+2y=5;2x-3y=7( ii) 2x-3y=8;4x-y=9 (iii) (3)/(2)x+(5)/(3)y=7;9x-10y=14( (iv) 5x-3y=11;-10x+6y=-22( v) (4)/(3)x+2y=8;2x+3y=12

(3) x+2y=-1;2x-3y=12

If ((3,-2),(-1,2))((x),(y))=((11),(-5)) , then 3x+7y=