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8x+9y=-28
-4x=y
solve the system by subsitution

Sagot :

ganjilaya2019

Answer:

x= 1

y = -4

Step-by-step explanation:

8x + 9y = -28

-4x = y

8x + 9(-4x) = -28

8x - 36x = -28

-28x = - 28

x = 1

y = -4(1) = -4

Answer:

2

Step-by-step explanation:

8 + 9 = 17

17y = 28

28 / 17 = 1.64

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