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Jonah Bryant
Mathematics
14 September, 12:46
Substitution method
x = - 2y
2x+5y=-1
+4
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Cornelius Merritt
14 September, 12:55
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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Lassie
14 September, 13:04
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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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