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itsjustme_lol

  • 3 years ago

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  1. itsjustme_lol
    • 3 years ago
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    If you were to use the substitution method to solve the following system, the expression equivalent to y from the second equation is substituted into the first equation.

  2. itsjustme_lol
    • 3 years ago
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    2x – 7y = 4 3x + y = –17

  3. PhoenixFire
    • 3 years ago
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    Rearrange the second equation for y=.... then substitute that into the first and solve for x. Then substitute your x into any of the equations for solve for the value of y.

  4. itsjustme_lol
    • 3 years ago
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    so ill get 2x – 7(3x – 17) = 4??

  5. PhoenixFire
    • 3 years ago
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    Almost. y=-3x-17 when you plug it in 2x-7(-3x-17)=4

  6. itsjustme_lol
    • 3 years ago
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    shoot. alright, i appreciate it!

  7. PhoenixFire
    • 3 years ago
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    Post your x and y here if you need confirmation

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