You are choosing between two health clubs. Club A offers membership for a fee of $ 11 plus a monthly fee of $ 23. Club B offers membership for a fee of $ 26 plus a monthly fee of $ 18. After how many months will the total cost of each health club be the​ same? What will be the total cost for each​ club?

Let's denote the number of months as $m$.

Total cost for Club A = $11 + $23m
Total cost for Club B = $26 + $18m

Setting the two total costs equal to each other:

$11 + $23m = $26 + $18m
$5m = $15
m = 3

After 3 months, the total cost for both health clubs will be the same at $74.

Total cost for Club A after 3 months = $11 + $23 x 3 = $80
Total cost for Club B after 3 months = $26 + $18 x 3 = $80