72=2(l-6)+2l

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Solution for 72=2(l-6)+2l equation:


Simplifying
72 = 2(l + -6) + 2l

Reorder the terms:
72 = 2(-6 + l) + 2l
72 = (-6 * 2 + l * 2) + 2l
72 = (-12 + 2l) + 2l

Combine like terms: 2l + 2l = 4l
72 = -12 + 4l

Solving
72 = -12 + 4l

Solving for variable 'l'.

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

Add '-4l' to each side of the equation.
72 + -4l = -12 + 4l + -4l

Combine like terms: 4l + -4l = 0
72 + -4l = -12 + 0
72 + -4l = -12

Add '-72' to each side of the equation.
72 + -72 + -4l = -12 + -72

Combine like terms: 72 + -72 = 0
0 + -4l = -12 + -72
-4l = -12 + -72

Combine like terms: -12 + -72 = -84
-4l = -84

Divide each side by '-4'.
l = 21

Simplifying
l = 21

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