Problem description:

There is a two-digit number, and the number on the ten-digit number is 2/3 (two-thirds) of the number on the single-digit number. The tenth digit plus 2 equals the fourth digit. What is this two-digit number? Is it simple enough? There must be a detailed comprehensive type! )

Analysis:

One digit is more than ten digits: 1-2/3= 1/3.

The number in the unit is 2/( 1/3)=6.

The number on the tenth digit is 6-2=4.

These two digits are: 10*4+6=46.

Comprehensive formula:

10*[2/( 1-2/3)-2〕+[2/( 1/2/3)]=46.