Last month, Dory biked 11 times as many miles as Karly, Together they bikes a total of 156 miles, How many miles did Dory bike last month?
+37099 Karly biked 'x' miles
Dory biked 11 x together they biked 156 miles
x + 11x = 156 miles
12x = 156
x =13 these are Karly's miles
Dory biked 11 times this amaount 11 x 13 = 143 miles
