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anonymous

  • one year ago

bye

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  1. jim_thompson5910
    • one year ago
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    start with y = −2x + 8 replace the 'y' with 'x-1' this replacement is possible because the second equation is y = x-1

  2. jim_thompson5910
    • one year ago
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    y = −2x + 8 x-1 = −2x + 8 do you see how to solve for x?

  3. jim_thompson5910
    • one year ago
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    yeah you solve for x, in other words, isolate x

  4. jim_thompson5910
    • one year ago
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    you forgot about that -1 on the left side

  5. jim_thompson5910
    • one year ago
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    3x-1 = 8

  6. jim_thompson5910
    • one year ago
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    yep if 3x = 9, then what is x?

  7. jim_thompson5910
    • one year ago
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    no

  8. jim_thompson5910
    • one year ago
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    3x = 9 means "3 times something equals 9"

  9. jim_thompson5910
    • one year ago
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    yeah x = 3

  10. jim_thompson5910
    • one year ago
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    now that we know x = 3, you can plug it into any equation with x and y

  11. anonymous
    • one year ago
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    hope will help you

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