Lois has x dollars more than Jim

Balbir Singh

Assign an unknown to the number of dollars Jim has (say, a dollars):
J ----------- L
a ----------- x+a

y = a + (x+a)
2a + x = y
a = (y - x)/2

Oct 1, 2020 • Comment

Mike McGarry, Magoosh Tutor

Dec 28, 2013 • Comment