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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

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  1. kropot72 Group Title
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    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
  2. kropot72 Group Title
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    @Mrszbieberxo Are you there?

    • one year ago
  3. Mrszbieberxo Group Title
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    yes I got infinitely many solutions

    • one year ago
  4. kropot72 Group Title
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    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
  5. Mrszbieberxo Group Title
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    y=4?

    • one year ago
  6. kropot72 Group Title
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    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
  7. Mrszbieberxo Group Title
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    I'm sorry i'm really confused :/

    • one year ago
  8. kropot72 Group Title
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    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
  9. kropot72 Group Title
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    rearranged as*

    • one year ago
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