Proposed by Pedro Pantoja-Natal-Brazil

**EQUATION IN NATURAL NUMBERS-12**

Solution 1 by Naren Bhandari-Bajura-Nepal, Solution 2 by Khaled Abd Imouti-Damascus-Syria

Proposed by Pedro Pantoja-Natal-Brazil

**EQUATION IN NATURAL NUMBERS-12**

Solution 1 by Naren Bhandari-Bajura-Nepal, Solution 2 by Khaled Abd Imouti-Damascus-Syria