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anonymous

  • 4 years ago

Solve the inequality. (solve interval form) 2x+2/4 - 2x-5/7 _<_ 5

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  1. campbell_st
    • 4 years ago
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    multiply through be 28 the 7(2x + 2) - 4(2x - 5) < 140 expand and simplify 14x + 14 - 8x - 20 <140 6x - 8 < 140 or 3x - 4 < 70 3x < 74 x<74/3 Unsure as to whether the inequality is <= or just <... but the maths appears correct

  2. anonymous
    • 4 years ago
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    Says it is wrong

  3. campbell_st
    • 4 years ago
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    oops should read 14x + 14 - 8x + 20 < 140 6x + 34 < 140 3x < 87 x<29

  4. campbell_st
    • 4 years ago
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    opps sign error in the expansion

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spraguer (Moderator)
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