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 2 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
 2 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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CalebBeavers
 2 years ago
Best ResponseYou've already chosen the best response.1Well, what do you get when you isolate x in xy=8

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

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

CalebBeavers
 2 years ago
Best ResponseYou've already chosen the best response.1We're finished, you substitute 8+y
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