Asked by ana

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???
Answered by Damon
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
Answered by ana
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..
Answered by Damon
I did those as examples. I already did your problem down earlier exactly this way.
Answered by Damon
To do the problem you have to know that in the decimal number system
ab is 10*a + 1*b
Answered by ana
o...ok...
Answered by Damon
By the way I hope you got 86 and 68 for the two numbers.
Answered by ana
yes i did...
Answered by JOE SCHMOE
try Radical 152 to the 5th power