Q:

- 4x + 3y = 23x- 9y =3Is (4,1) a solution of the system?​

Accepted Solution

A:
Answer:- 4x + 3y = 2we multiply the equation by 3-12x+9y =6we add the equations :                                       -12x+9y =6   +                                         3x- 9y =3                                      ---------------------                                        -9x+0 =  9then -9x =  9x= 9/-9x=-1we replace this result in the first equation.- 4x + 3y = 2-4(- 1)+ 3y =24 +3y =23y= 2-43y =-2y=-2/3solution:  (-1, -2/3)the answer to the question is: NO