Find the sum of the side lengths.
The sum of the side lengths is the perimeter, which we know from the problem is 52 units.Set expression from Step 1 equal to 52 and solve for x.
(7x − 4) + (19) + (10x + 3)
(7x − 4) + (19) + (10x + 3) = 52
17x + 18 = 52
Continue solving finding the value of x.
Find side lengths substituting your found value of x into the expression given for each side.