Use any method to solve the system of equation: 6x + 27y = -9 20x + 90y = -30

asked Sep 12, 2024 108k views

1 vote

Use any method to solve the system of equation: 6x + 27y = -9
20x + 90y = -30

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3 votes

6x + 27y = -9
-6x -6x
27y = -6x - 9
———————
27
y= -2/9x - 3

20x + 90y = -30
-20x -20x
90y = -20x - 30
—————————
90
y = -2/9x - 3

Rob Glassey answered Sep 18, 2024

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