Question 363486
r = m-26, and 2(r+9) = m+9.  By direct substitution, 
2(m-26+9) = m+9,
2(m-17) = m+9,
2m - 34 = m+9,
m = 43, age of the mother.
r = 43 - 26 = 17, age of raki.