Answer:
Step-by-step explanation:
The four sides of a square are equal.
7x + 3 = 5x + 8 Subtract 5x from both sides
7x - 5x + 3 = 8 Combine the left
2x + 3 = 8 Subtract 3 from both sides
2x = 8-3 Combine the right
2x = 5 Divide by 2
x = 5/2
x = 2.5
That is not quite the answer
Side = 7x + 3
Side = 7*2.5 + 3
Side = 17.5 + 3
Side = 20.5
