[" (ii) "3x-5y=25],[7x+2y=15]

Solve by the method of elimination 2x-y=3,3x +y=7 (ii) x-y=5, 3x+ 2y = 25 (iii) (x)/(10 ) +(y)/(5) =14 ,(x)/( 8) + (y)/( 6) =15 (iv) 3(2x+y) =7xy,3 (x+3y ) =11xy (v) (4)/(x) +5y =7,(3)/(x) +4y =5 (vi) 13x +11y = 70,11x +13y =74

7x+15y =2 x-2y=3

Solve this pair of equation and find x and y ; 7x-15y=2, x+2y=3

Find the solution of 3x-5y+1=0,-7x+3y+15=0

5x+2y=4 7x+3y=5

Write all the terms of each of the following algebraic expressions: (i) 3x^5+5y^4-7x^2y+7 (ii) 9y^3-2z^3+7x^3y-3x y z

Evaluate : (viii) (7x + 15y) ( 5x - 4y)

Solve the following system of equations by matrix method : 5x+7y+2=0 4x+6y+3=0 5x+2y=3 3x+2y=5 3x+4y-5=0 x-y+3=0 3x+y=19 3x-y=23 3x+7y=4 x+2y=-1 3x+y=7 5x+3y=12