Question

Help me with this attachment please?

Answer 1

The three solutions are:

• $a = 1,\ b = 3$. In fact, $1+333+333+333 = 1333$
• $a = 2,\ b = 6$. In fact, $2+666+666+666+666 = 2666$
• $a = 3,\ b = 9$. In fact, $3+999+999+999+999 = 3999$

You can find the first one with a bit of trial and error. The second and third derive from the fact that if you multiply by 2 or 3 every term, the whole result will be multiplied by 2 or 3 as well

Answer 2

Answer

1st solution: a = 1

                   b = 3

2nd solution: a = 2

                      b = 6

Explanation

1st solution

                          1

                      333

                      333

                      333

                   +333

                    1333

2nd solution

        2

   666

   666

   666

+ 666

2666