Solve the following equation
l+3+l=63
Solve for l
l + 3 + l = 63
(1 + 1)l = 2l
2l + 3 = + 63
Group our constants 3 and 63. subtract 3 from both sides
2l + 3 - 3 = 63 - 3
2l = 60
l = 30
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