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Mrszbieberxo
Group Title
[6.02] 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
 one year ago
 one year ago
Mrszbieberxo Group Title
[6.02] 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
 one year ago
 one year ago

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kropot72 Group TitleBest ResponseYou've already chosen the best response.0
4x  y =8 The first step to isolate y is to subtract 4x from both sides of the equation. Can you do that?
 one year ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.0
@Mrszbieberxo Are you there?
 one year ago

Mrszbieberxo Group TitleBest ResponseYou've already chosen the best response.0
yes I got infinitely many solutions
 one year ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.0
Can you please do the step that I gave previously. 4x  y =8 The first step to isolate y is to subtract 4x from both sides of the equation. Can you do that?
 one year ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.0
Not really. Subtracting 4x from both sides gives: 4x  y  4x = 8  4x ...............(1) Can you simplify the left hand side of (1)?
 one year ago

Mrszbieberxo Group TitleBest ResponseYou've already chosen the best response.0
I'm sorry i'm really confused :/
 one year ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.0
We are looking at simplifying the left hand side of 4x  y  4x = 8  4x ...............(1) If the terms on the left hand side are rearrangedas follows is the simplification clearer? (4x  4x)  y = 8  4x Hint: What is 4x  4x ?
 one year ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.0
rearranged as*
 one year ago
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