garywinthorpe696 garywinthorpe696

25-01-2021
Mathematics

contestada

7 - 2x - 5y=-7
3x + 4y = 7

Respuesta :

jarin77 jarin77

25-01-2021

-7 + 7 = 0
-5y = 2x
-5y/5 = y
2x/5 = 2x/5

y = 2x/5

4y = -3x + 7

4y/4 = y

-3x/4 + 7/4

y = -3x/4 + 7/4

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