anonymous
  • anonymous
Which expression is equivalent to 12x − 8x + 3 and why? 3 + 4x, because (12x − 8x) + 3 = 4x + 3 = 3 + 4x 7x, because 12x − 8x + 3 = 4x + 3 = 7x 12x − 5, because 12x − (8x − 3) = 12x − 5 x, because 12x − 8x + 3 = 12x − 11x = x
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
anonymous
  • anonymous
u there?
UsukiDoll
  • UsukiDoll
are you sure it's not \[12x^2-8x+3 \]? for the equation?

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anonymous
  • anonymous
no
anonymous
  • anonymous
12x − 8x + 3
UsukiDoll
  • UsukiDoll
for once I don't understand this.. @midhun.madhu1987
UsukiDoll
  • UsukiDoll
I mean if you combine like terms it does become 4x+3... but don't know what goes on next.
anonymous
  • anonymous
nvm next question
anonymous
  • anonymous
The expression to find the perimeter of a rectangle is 2(length + width). What is the perimeter, in units, of a rectangle of length fraction 1 over 7 unit and width fraction 1 over 2 unit? fraction 1 and 1 over 7 units fraction 1 and 2 over 7 units fraction 4 over 9 unit fraction 2 over 9 unit
anonymous
  • anonymous
anonymous
  • anonymous
@midhun.madhu1987
UsukiDoll
  • UsukiDoll
open a new question .

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