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Simplify using distributive property3(-2+x+4)

you have to use distributive property

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Parviz F. | Mathematics professor at Community CollegesMathematics professor at Community Colle...
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 Better Simplify the parenthesis first. It becomes important when things get more complicate.
 
   3 ( -2 + X + 4 ) = 3 ( X + 2) = 3X + 6
 
   Like:
 
    5 - 3 ( -95 + 75 + X)= 5 - 3 ( -15 + X) = 5 + 45 -3X = 50 -3x
 
     You don't have to multiply 3 by 95& 75. 
Beth L. | Patient, Knowledgeable and Very Qualified Mathematics TutorPatient, Knowledgeable and Very Qualifie...
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3 (-2 + x + 4) = -6 +3x +12 = 3x + 6
Multiply the three through (above) then add the -6 to the +12.
 
3x + 6  is your final answer.
 
 
Ralph L. | Algebra I, II, Visual Basic, Beginning C++ tutorAlgebra I, II, Visual Basic, Beginning C...
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distributive property states:  a(b + c) = ab + ac
 
3(-2 + x + 4)
 
in your case you have three values inside the parentheses, so you can use this: 
 
a(b + c + d) = ab + ac + ad
 
so, (3 * -2 + 3x + 12) ---> -6 + 3x + 12 ---> 3x + 6