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Mathematics
Marvin
12 July, 00:18
Substitution method
x = - 2y
2x+5y=-1
+1
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2
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Avery Bender
12 July, 01:29
0
so if X is - 2y then u put that in for x and get - 4y and then add 5 to get 9
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Pierre Aguilar
12 July, 01:33
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So you would put - 2y in for x. It would become 2 • - 2y + 5y = - 1
Simplify and the answer is y = - 1
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