juliancballero juliancballero

21-03-2019
Mathematics

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Solve the system of equations displayed in the picture.

Solve the system of equations displayed in the picture class=

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nicoledegano nicoledegano

21-03-2019

The answer is D) (-1,-12)

Reason:

1) substitute 2x-10 for y in y=4x-8

2) 2x-10=4x-8

3) -2x-10=-8

4) -2x=2

5) x=-1

6) substitute -1 for x in y=2x-10

7) y=(2)(-1)-10

8) y=-12

Answer

x=-1 and y=-12

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