algebra

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Uhhhh... well i need help with this algebra but i kinda need it explained as well...meaning if you can help please explain what you did because i have no idea how to do this kind of problem

r+3
---- = 1
12

i need to know what r is

12

  • algebra -

    r+3
    ---- = 1
    12

    Multiply both sides by 12.

    r + 3 = 12

    Subtract 3 from both sides.

    r = 9
    __________________________

    You can prove it by substituting 9 for r in the original equation.

    12/12 = 1

  • algebra -

    OHHHH i get it i wasn't sure if i was supposed to mess with the 3 because ya know how with some problems you don't mess with the number next to the variable soo yeah thanks!:-)
    (P.S. Thanks you were an angel sent from the math heaven!!lol)

  • algebra -

    You're welcome (polishing my halo)! :-)

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