anonymous
  • anonymous
Simplify the expression. 12p - 10a + 4 - 4p -6
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
NEED the answer!
anonymous
  • anonymous
12p-4p = 8p 4-6 = -2 So: 8p=10a-2 p= (5/4)a-(1/5)
anonymous
  • anonymous
But what is the answer to this problem?

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anonymous
  • anonymous
The general idea of simplifying, when you have no other information, is to eliminate all common factors (eg. 12p-4p = 8p), and juggle to isolate the expression for one variable. The equation you posted originally, was: 12p - 10a + 4 - 4p -6 Which is really the same as: 12p - 10a + 4 - 4p -6=0 12p-4p-10a+4-6=0 8p-10a-2=0 8p=10a+2 (divide by 8 to isolate for p:) p=(1/8)(10a+2) => p= (5/4)a + (1/4) (typo in my last reply)
anonymous
  • anonymous
I know but what is the answer.
anonymous
  • anonymous
The answer? You haven't provided enough information for me to help you any further, I'm afraid. Sure the equation is correct? If that's all the information you've got, that is the answer.
anonymous
  • anonymous
This is what it says..... Simplify the expression. 11p - 7q - 12 + 9q - 5r + 8
anonymous
  • anonymous
Oops wrong one/
anonymous
  • anonymous
Well, it says "simplify". That's what I've done. Isolating for one variable is as simple as it gets. Alternatively you can write the expression as 8p-10a-2

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