Banner image SITE-LANGUAGE-en-ICON BROWSER-LANGUAGE--IMAGE
Content / Home-Schooling / Mathematics / problem-algebra .. concise-view << previous next >>

Algebra Problem

aa + cd = dad where every letter represents a decimal digit 10(a + c) + (a + d) = 100d + 10a + d SUBTRACT 10a + d from both sides of the equation
  1. Leon 10c + a = 100d
  2. Julie OP hezuer: 10c+ A =100D
  3. Leon: the solutions must be integers
  4. Julie OP hezuer: 1
  5. Julie OP hezuer: a=10
  6. Julie OP hezuer: c=0
  7. Leon: d must be =1 , because if it were 2 or higher, we could not solve the equation, and if it were zero there's also no possible solution.




iBiscuits LOGO