carlieknott11 carlieknott11

11-01-2021
Mathematics

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Which expression can you substitute for xin12x+y=5 to solve the system below?
A:6-y
B:5-y
C:5+y
D:5-12y

Which expression can you substitute for xin12xy5 to solve the system below A6y B5y C5y D512y class=

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minhkhan minhkhan

11-01-2021

Well, you can see in the system that they give you the expression x = 6 - y. So it's literally telling you that, well, x equals (6 - y), and therefore since they're equivalent expressions, you can substitute 6 - y for x to solve the system.

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