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

Solve by elimination method:_ x+2y=-1 ; 2x-3y=12

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

Solve the simultaneous equations using Cramer's rule x+2y =-1, 2x-3y=12

Solve the following system of equations by using the method of substitution: x+2y=-1,quad 2x-3y=12

,x-y=-1, 3x-2y=12

Solve the following simultaneous equations using Cramer's rule . x + 2y = - 1 , 2x - 3y = 12

Rajesh want to chose a best plan for his mobile phone. He has 2 options available with him. The first plan of company A, cost Rs 20 per month, with costing an additional 25 paise per minute. The second plan of company B charge Rs 40 per month, but calls cost 8 paise per minute. These two situations are shown below in the form of linar equations. The total cost of the two company's are given as : y =0.25 x + 20 and y = 0.8x + 40 Where, x is the minutes used any y is the total cost per month. What are the values of x and y in the system are linear equations x + 2y =-1 and 2x - 3y = 12

Solve x+3y=6,2x-3y=12

In a triangle ABC ,the bisectors of angles BandC lies along the lines x=y and y=0 . If A is (1,2) ,then the equation of line BC is (a) 2x+y=1 (b) 3x-y=5 (c) x-2y=3 (d) x+3y=1

y^(2)=12x