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Butoxors [25]
3 years ago
13

System of substitution Y-9=-x 3x-y=7

Mathematics
2 answers:
gregori [183]3 years ago
8 0
1.  X = 9 - Y

2. X = 7+y/3

I really hope this helps. :)
Vikentia [17]3 years ago
5 0
3(y-9)-y=7
3y - 27 -y = 7
2y = 34
Y = 17

3(x) -17 = 7
3x = 24
X = 8

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