Question

Solve the following pairs of equations by
cross multiplication method.
(1) 5x -2y+9=0 , 4x+3y=2​

Answer 1

Answer:

a1=5 ,a2=4, b1=-2 ,b2=3 ,c1=9, c2=-2

Step-by-step explanation:

we know,  x/(b1c2)-(b2c1) = y/(c1a2)-(c2a1) = 1/(a1b2)-(a2b1)

hence, x/(-2*-2)-(3*9) = y/(9*4)-(-2*5) = 1/(5*3)-(4*-2)

          =x/4-27 = y/36+10 = 1/15+8

          = -x/23 = y/46 = 1/23

therefore,  -x/23=1/23

                 x= -1

similarly, y/46= 1/23

               y= 2

hope this helps have a nice day (plz pardon my mistakes cuz i am a learner too :) )

Answer 2

Answer:

$hi \: lucky$

Step-by-step explanation:

friends with my enemy ,good ...

it has been a long time to talk to you

hope you doing nice