Question 998308
Let's call the unknown sides x. Since we have two sides, we have 2x.
And the long side, the problem says, is x+7
2x+x+7= 73 Add x on left, and subtract 7 on both sides
3x= 66 Divide both sides by 3
x= 22 is the length of each short leg, and the long leg is
22+7= 29
Proof
2 equal sides:
2*22= 44 Plus the long side:
22+7= 29
_ _ -------
Total: 73 We have the correct answer