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anonymous
 3 years ago
For the following system, if you isolated x in the second equation to use the Substitution Method, what expression would you substitute into the first equation?
2x + y = 9
−x − y = −8
−8 + y
−8 − y
8 + y
8 − y
anonymous
 3 years ago
For the following system, if you isolated x in the second equation to use the Substitution Method, what expression would you substitute into the first equation? 2x + y = 9 −x − y = −8 −8 + y −8 − y 8 + y 8 − y

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Well, what do you get when you isolate x in xy=8

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Well. step 1: add y to both sides step 2:divide both sides by 1

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0x y= 8 1 1 x = 7

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Wheres y? xy=8 add y to both sides x=8y divide both sides by 1 x=8+y

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0We're finished, you substitute 8+y
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