Question

5/2x+15/2=15

Answer 1

first you want to get the 5/2x on one side
so lets subtract 15/2 from both sides
5/2x + 15/2 = 15
5/2x = 15 - 15/2
5/2x = 30/2 - 15/2
5/2x = 15/2
lets multiply this equation by 2 to get rid of the fractions
(2)5/2x = (2)15/2
5x = 15
x = 3
check...
5/2(3) + 15/2 = 15
15/2 + 15/2 = 15
30/2 = 15
15 = 15 (correct)
ANSWER: x = 3