Question 1017003
Let's  call the base x. The problem says:
One side: x-2
Other side: 1/2x+3
Let's put it all together:
x+x-2+1/2x+3 = 15
2x+1/2x+1 = 15 subtract 1, both sides:
2x+1/2x = 14 Add on right, use common factor of 2:
(4x+1)/2 = 14 Add on left and multiply both sides times 2 (2 dividing and 2 multiplying on left cancel each other):
5x = 28 Divide both sides by 5
x= 28/5 
5 goes into 28 5 times:5*5= 25 and leaves us 3 (28-25= 3), so simplifying we get:
x= 28/5 = 5 3/5 is the base
5 3/5-2= 3 3/5 is one side
(1/2*28/5)+3 = 28/10+3= 84/30+30/30= 114/30= 3 24/30= 3 4/5 is the other side
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Check:
3 3/5 = 18/5
3 4/5 = 19/5
28/5+18/5+19/5 = 65/5 divide and we get = 15 We have the correct answer.
28/5+18/5+19/5