akimmelman74 akimmelman74

19-01-2021
Mathematics

contestada

(1,5) -5x+6y=25
-7x+8y=33

Respuesta :

ibtahal2020 ibtahal2020

19-01-2021

Answer:

x=-19 and Y=-25/2

Step-by-step explanation:

-5x+6y+5=25

-5x+6y+5+6y=25+-6y(add 6 to both sides)

-5x+5=6y+25

-5x+5+-5=-6y+25+-5(add -5 to both sides)

-5x=-6y+20

-5x=-6y+20

-5 -5 (divide both sides by -5)

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