The answer would be 34/100 or 17/50 if reduced .
This is how you solve it, and here is the answer!
Less than does mean minus, but when the question says less than some number, that number goes first. should have written 5-n
The sides must be equal otherwise BC and AD wouldn't be parallel. So
12x-6 = 2x+7
10x = 13
x = 13/10 = 1.3
