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Susan9419

  • 3 years ago

PLZ EXPLAIN!!!Fill in the missing information in this Algebraic proof. Please label your answers as a, b, c, ... (Vertical Angles are Congruent) a.) _____ = (5x - 16) (Substitution) b.) -2x + 20 = _____ (Subtraction Prop. of Equality) c.) -2x = _____ (Subtraction Prop. of Equality) d.) x = _____ (Division Prop. of Equality

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  1. Susan9419
    • 3 years ago
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  2. hartnn
    • 3 years ago
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    Since vertical angles are congruent, you can equate them, so u get 3x+20 = 5x-16 did u get the a) part ?

  3. Susan9419
    • 3 years ago
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    kind of is that how i fill out the a part?

  4. hartnn
    • 3 years ago
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    yes. now for b) part u subtract 5x from both sides, u get -2x+20 = -16

  5. Susan9419
    • 3 years ago
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    okay ;D

  6. hartnn
    • 3 years ago
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    now subtracting 20 from both sides, we get -2x=-16-20 -2x=-36

  7. Susan9419
    • 3 years ago
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    so that is b?

  8. hartnn
    • 3 years ago
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    that was c) part -2x=-36 now d) part dividing -2 on both sides x= -36/-2 = 18 x=18

  9. Susan9419
    • 3 years ago
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    thank you!!

  10. hartnn
    • 3 years ago
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    Welcome ^_^

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