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Gretchen2013

  • 2 years ago

Given: x – (5 – 3x + 2) = 15 + 3x Prove: x = 22 attatchment below OPTIONS What are the missing justification steps, in order? Commutative Property of Addition, Combine Like Terms, Distributive Property Associative Property of Addition, Distributive Property, Multiplication Property of Equality Associative Property of Addition, Commutative Property of Addition, Distributive Property Associative Property of Addition, Distributive Property, Addition Property of Equality

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  1. Gretchen2013
    • 2 years ago
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  2. Gretchen2013
    • 2 years ago
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    this is hard :/

  3. waterineyes
    • 2 years ago
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    No it is easy if you know all the properties...

  4. jiteshmeghwal9
    • 2 years ago
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    plug the value of x in the equation to prove it

  5. jiteshmeghwal9
    • 2 years ago
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    22-(5-3(22)+2)=15+3(22)

  6. waterineyes
    • 2 years ago
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    Just wait @jiteshmeghwal9

  7. Gretchen2013
    • 2 years ago
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    -1289=81?

  8. waterineyes
    • 2 years ago
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    You have to find x.. Just suppose that 22 is not the answer for 10 minutes.. @Gretchen2013

  9. Gretchen2013
    • 2 years ago
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    ?

  10. karatechopper
    • 2 years ago
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    x – (5 – 3x + 2) = 15 + 3x <-- VERY SIMPLE equation. First we want to do distributive property. We want to distribute the negative sign to the (5-3x+2) So then the equation will become.. x-5+3x-2=15+3x Now that we have our new equation -> x-5+3x-2=15+3x Lets break it down a bit more, By combining like terms! We will combine our x's together. so.. x-5+3x-2=15+3x will become.. 4x-5-2=15+3x Now, that we have combined our x's on one side, let us also combine the simple numbers together. So.. 4x-5-2=15+3x will become.. 4x-7=15+3x Now that we have our new equation -> 4x-7=15+3x This will become very easy to solve! 4x-7=15+3x We can start by adding the 7 to both sides. 4x-7=15+3x +7 +7 ------------ 4x=22+3x now we will subtract 3x on both sides. 4x=22+3x -3x -3x ---------- x=22

  11. Gretchen2013
    • 2 years ago
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    theanks for explaining! @karatechopper

  12. karatechopper
    • 2 years ago
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    Most welcome! @Gretchen2013

  13. karatechopper
    • 2 years ago
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    Hey i used Option D on here.

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