minibladdo minibladdo

22-09-2021
Mathematics

contestada

10x + 9y=-15
-10x – 10y = 10
Solve by the elimination

Respuesta :

22-09-2021

Answer:

-y = 25

y = -25

When the signs are different you add, the value for x is the same so you don't need to do anythung else but to add

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