Question

solve using cross multiplication 4x+3y=17. 3x-4y= -6​

Answer 1

Step-by-step explanation:

the first equation is 3x-4y=15

the second equation is 2x - 2y =18

(1) x 2 = 6x - 8y =30

(2) x 3 = 6x - 6y = 54

(-)

-----------------------

            - 2y = -24

                  y =12

now sub y in (1)

      = 3x - 4 x 12 =15

        = 3x - 36 = 15

        = 3x = 51

       = x = 17          

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