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Acnologia
Group Title
Please help. I will fan and give medal to whoever succeeds in helping me.
For the following system, if you isolated y in the first equation to use the Substitution Method, what expression would you substitute into the second equation?
4x − y = 8
2x + 3y = 9
8 − 4x
8 + 4x
−8 + 4x
−8 − 4x
 one year ago
 one year ago
Acnologia Group Title
Please help. I will fan and give medal to whoever succeeds in helping me. For the following system, if you isolated y in the first equation to use the Substitution Method, what expression would you substitute into the second equation? 4x − y = 8 2x + 3y = 9 8 − 4x 8 + 4x −8 + 4x −8 − 4x
 one year ago
 one year ago

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SA5UK3 Group TitleBest ResponseYou've already chosen the best response.1
y = 84x So when you switch the negative what happens?
 one year ago

Acnologia Group TitleBest ResponseYou've already chosen the best response.0
I'm not sure what you mean by "switch the negative".
 one year ago

warningiflirt Group TitleBest ResponseYou've already chosen the best response.1
do the opposite sign so 8= 8
 one year ago

SA5UK3 Group TitleBest ResponseYou've already chosen the best response.1
When you divide out the negative what happens to (84x)
 one year ago

warningiflirt Group TitleBest ResponseYou've already chosen the best response.1
so what is the opposite of 4 ?
 one year ago

SA5UK3 Group TitleBest ResponseYou've already chosen the best response.1
Yep @warningiflirt is right. 1 means the opposite. So take the opposite of 84x
 one year ago

warningiflirt Group TitleBest ResponseYou've already chosen the best response.1
so you have −8 + 4x
 one year ago

warningiflirt Group TitleBest ResponseYou've already chosen the best response.1
see how I did that?
 one year ago

SA5UK3 Group TitleBest ResponseYou've already chosen the best response.1
y = (8 4x) y = (84x) If you know how to distribute it makes it y = 8 + 4x
 one year ago
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