L+S=20

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Solution for L+S=20 equation: 


Simplifying
L + S = 20

Solving
L + S = 20

Solving for variable 'L'.

Move all terms containing L to the left, all other terms to the right.

Add '-1S' to each side of the equation.
L + S + -1S = 20 + -1S

Combine like terms: S + -1S = 0
L + 0 = 20 + -1S
L = 20 + -1S

Simplifying
L = 20 + -1S

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