algebra..urgent...

hi...

i need help finding 2 equations that i would use for this elimination process....
this is what they gave me:
* the sum of the digits i a two-digit is 14. If the 2 digits are reversed, the new number is 18 less than the original number. Find the original number.

what two equation would i use for this???

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  3. 👁 39
asked by ana

  1. ana
    look at some two digit number, for example 27
    the digit on the right is in the ones place
    the digit on the left is in the tens place
    so
    27 = 2 times 10 + 7 times 1

    say the number was 527
    that is 5 times 100 + 2 times 10 + 7 times 1

    say the number is a b
    that is a times 10 + b times 1

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    posted by Damon

  2. i tried it and it works but in our class the teacher tells us to do equations using the number they give us...we are not supposed to add any other numbers until we actually solve it..

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    posted by ana

  3. I did those as examples. I already did your problem down earlier exactly this way.

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    posted by Damon

  4. ok...

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    posted by ana

  6. To do the problem you have to know that in the decimal number system
    ab is 10*a + 1*b

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    posted by Damon

  7. o...ok...

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    posted by ana

  8. By the way I hope you got 86 and 68 for the two numbers.

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    posted by Damon

  9. yes i did...

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    posted by ana

  10. try Radical 152 to the 5th power

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    posted by JOE SCHMOE

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