echosamechosam22 echosamechosam22

04-12-2020
Mathematics

contestada

Solve the system by substitution. And show your work

-9y-10=x

5x+6y=-11

Respuesta :

amaniwarren25 amaniwarren25

04-12-2020

The answer is (-1, -1).
hope this helps!

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2022110 2022110

14-12-2020

Answer:

x = -1, y = -1

( -1 , -1 )

Step-by-step explanation:

plug in -9y - 10 for x

5 ( -9y - 10) + 6y = -11

-45y - 50 + 6y = -11

-39y - 50 = -11

-39y = 39

y = -1

then plug in

-9(-1) - 10 = x

9 - 10 = x

x = -1

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