Answer:
x = 34; y = 14
Step-by-step explanation:
Step 1: Make the equations
x + y = 48
x - y = 20
Step 2: Solve the equations
x + y = 48
x - y = 20
2x = 68
x = 34
34 + y = 48
y = 14
6.5 meters is the answer, i know because i answered the same question on a quiz, i just guessed so i don't really have an explanation on why.