the sum of the digits of a two digits number is 12.if 18 is added to it the digits are reversed .find the number.
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let the two numbers be x,2x
x+2x=12
3x=12
x=12÷3
x=4.
if 18 is added to the number=18+4
=22
x+2x=12
3x=12
x=12÷3
x=4.
if 18 is added to the number=18+4
=22
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