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Posted by on Monday, September 22, 2008 at 10:04pm.

How many values of x make each statement true? Explain your reasoning.

a) 3x+3=3(x+1)
b) x-4-x=0

I don't get what the question is telling me to do.
Help?

  • Algebra 1: 8th Grade - , Monday, September 22, 2008 at 10:08pm

    for the first one:
    3x+3=3(x+1) expand it to get
    3x+3 = 3x+3
    0=0
    this is a true statement, so any value of x makes the original statement true.
    This is an example of an "identity"

    for the second:
    x-4-x=0 , so
    -4 = 0
    this is a False statement, so NO value of x will make the original statemtent true

  • Algebra 1: 8th Grade - , Monday, September 22, 2008 at 10:12pm

    Thank you sooo much.
    :]

  • Algebra 1: 8th Grade - , Wednesday, September 24, 2008 at 7:30pm

    i need help in intergers

  • Algebra 1: 8th Grade - , Wednesday, September 24, 2008 at 10:31pm

    -+-=-

    and

    +++=+

    -++=-

    ++-=+

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