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Mrszbieberxo
 2 years ago
[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
Mrszbieberxo
 2 years ago
[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

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kropot72
 2 years ago
Best ResponseYou've already chosen the best response.04x  y =8 The first step to isolate y is to subtract 4x from both sides of the equation. Can you do that?

kropot72
 2 years ago
Best ResponseYou've already chosen the best response.0@Mrszbieberxo Are you there?

Mrszbieberxo
 2 years ago
Best ResponseYou've already chosen the best response.0yes I got infinitely many solutions

kropot72
 2 years ago
Best ResponseYou've already chosen the best response.0Can 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?

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

Mrszbieberxo
 2 years ago
Best ResponseYou've already chosen the best response.0I'm sorry i'm really confused :/

kropot72
 2 years ago
Best ResponseYou've already chosen the best response.0We 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 ?
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