[" (iii) "3x-y=3," (iv) "0.2x+0.3y=1.3],[9x-3y=9,0.4x+0.5y=2.3]

[0.2x+0.3y=1.3],[0.4x+0.5y=2.3]

0.2x + 0.3y = 1.3,0.4x + 0.5y = 2.3

Solve the following pair of linear equations by the substitution method. (i) x+y=14 ;x- y=4 (ii) s-t=3; s/3+t/2=6 (iii) 3x-y=3;9x-3y=9 (iv) 0. 2 x+0. 3 y=1. 3 ;0. 4 x+0. 5 y=2. 3 (v) sqrt(2)x+sqrt(3)y=0;sqrt(3)x-sqrt(8)y=0 (vi) 3x/2-5y/2=-2;x/3+y/2=13/6

Solve the following pair of linear equations by the substitution method. (i) x+y=14 ;x- y=4 (ii) s-t=3; s/3+t/2=6 (iii) 3x-y=3;9x-3y=9 (iv) 0. 2 x+0. 3 y=1. 3 ;0. 4 x+0. 5 y=2. 3 (v) sqrt(2)x+sqrt(3)y=0;sqrt(3)x-sqrt(8)y=0 (vi)3x/2-5y/2=-2;x/3+y/2=13/6

Solve using the method of substitution. ( i) 2x-3y =7,5x +y=9 (ii) 1.5x+ 0.1 y =6.2,3x -0.4y=11.2 (iii) 10% of x +20% of y =24, 3x-y=20 (iv) sqrt2x -sqrt 3y =1, sqrt 3x -sqrt 8y =0

Solve the following equations : 0.2x+0.3y=1.3 0.4x+0.5y=2.3

x-3y-3=0 ; 3x-9y-2=0

x- y + 3 = 0, 2x + 3y - 4 = 0 .

2x-y-5=0; x+3y-9=0