text: need help with math please? the populations of two towns are changing at steady rates.  one town has a population of 25,500.  it's population is increasing by 2000 people each year.  the other town has a population of 47,900.  it's population is decreasing by 800 people each year.  if the rates for each town remain the same in how ma ny years will the populations be the same? list out the population of each town?  town a: 25,500; 27,500; 29,500; 31,500; 33,500; 35,500; 37,500; 39,500; 41,500; 43,500; 45,500; 47,500... town b: 47,900; 47,100; 46,300; 45,500; 44,700; 43,900; 43,100; 42,300; 41,500; 40,700...  you'll notice that after 8 years, you'll end up with 41,500 people per town. but modulo_function has a good method for solving though. i'd never thought of using 2 straight lines and finding their intersection to solve your question.  hope this helps :)