Answer
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l=64

↓Steps Explained:↓

Solve for l

2.5l - 36 = 124

Divide each side by 2.5

2.5l
2.5
=
  
-36
2.5

Group constants

Group our constants -36 and 124.
add 36 to both sides

2.5l - 36 + 36 = 124 + 36

Cancel 36 on the left side:

2.5l = 160

Divide each side of the equation by 2.5

2.5l
2.5
=
  
160
2.5

l = 64

Final Answer

l=64
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