21=l-6

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Solution for 21=l-6 equation:


Simplifying
21 = l + -6

Reorder the terms:
21 = -6 + l

Solving
21 = -6 + l

Solving for variable 'l'.

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

Add '-1l' to each side of the equation.
21 + -1l = -6 + l + -1l

Combine like terms: l + -1l = 0
21 + -1l = -6 + 0
21 + -1l = -6

Add '-21' to each side of the equation.
21 + -21 + -1l = -6 + -21

Combine like terms: 21 + -21 = 0
0 + -1l = -6 + -21
-1l = -6 + -21

Combine like terms: -6 + -21 = -27
-1l = -27

Divide each side by '-1'.
l = 27

Simplifying
l = 27

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