anonymous
  • anonymous
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
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
anonymous
  • anonymous
this is hard :/
anonymous
  • anonymous
No it is easy if you know all the properties...

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jiteshmeghwal9
  • jiteshmeghwal9
plug the value of x in the equation to prove it
jiteshmeghwal9
  • jiteshmeghwal9
22-(5-3(22)+2)=15+3(22)
anonymous
  • anonymous
Just wait @jiteshmeghwal9
anonymous
  • anonymous
-1289=81?
anonymous
  • anonymous
You have to find x.. Just suppose that 22 is not the answer for 10 minutes.. @Gretchen2013
anonymous
  • anonymous
?
karatechopper
  • karatechopper
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
anonymous
  • anonymous
theanks for explaining! @karatechopper
karatechopper
  • karatechopper
Most welcome! @Gretchen2013
karatechopper
  • karatechopper
Hey i used Option D on here.

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