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-8x+y=9 and 5x-y=3 solved by substitution- thank you in advance :)

-8x+y=9 and 5x-y=3 solved by substitution- thank you in advance :)
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3 votes
-8x+y=9 and 5x-y=3 solved by substitution- thank you in advance :)

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User SKT
by
8.1k points

1 Answer

1 vote
-8x + y = 9
5x - y = 3

- 3x = 12
x = -4


5(-4) -y = 3
-20 - y = 3
-y = 20 + 3
- y = 23
y = - 23
answered
User Denis Dmitrienko
by
7.6k points
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