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Jenny4218

  • 3 years ago

Solve by substitution 7a = 2 - b 7a= 6 - b a.no solution b.infinite solutions c. ordered pair:

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  1. aroub
    • 3 years ago
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    7a = 2 - b 7a= 6 - b b=2-7a 7a=6-2+7a 7a-7a=4 0=4 So, no solution.

  2. mathslover
    • 3 years ago
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    OR \[\large{2-b=6-b \quad \textbf{since {=7a}}}\] \[\large{2-6=-b+b}\] \[\large{-4\ne 0}\] hence no soln

  3. mathslover
    • 3 years ago
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    @aroub explained well though

  4. mathslover
    • 3 years ago
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    got it @Jenny4218 ?

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