julper21 julper21

26-02-2019
Mathematics

contestada

what coordinate pair satisfies both 5x - 3y=22 and -4x + y=-19

Respuesta :

26-02-2019

Answer:

hello : coordinate pair is: (5 ; 1)

Step-by-step explanation:

you have this system :

5x - 3y=22 ......(1)

-4x + y= -19.....(2)

by (2) : y = 4x -19

put y in (1) : 5x - 3 (4x -19) =22

5x -12x +57 = 22

- 7x = -35

x = 5

but : y = 4x -19 so : y = 4(5) -19 = 1

coordinate pair is: (5 ; 1)

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