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Posted by on Wednesday, March 2, 2011 at 5:44pm.

get each variable by itself on one side of the equation.
x-45=90

n+23.4=36.9

  • 5th grade math - , Wednesday, March 2, 2011 at 5:47pm

    I'll show you how to work this kind of problem.

    n+23.4=36.9

    You want to get the knowns on one side and the unknown on the other side.

    Subtract 23 from both sides.

    n = 36.9 - 23.4
    n = 13.5

    I'll be glad to check your work on the first problem.

    Note: you'll need to add 45 to both sides.

  • 5th grade math - , Saturday, March 5, 2011 at 8:10pm

    13 ;-5

  • 5th grade math - , Saturday, March 5, 2011 at 8:14pm

    mrow

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