2(2l+1)=20

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Solution for 2(2l+1)=20 equation: 


Simplifying
2(2l + 1) = 20

Reorder the terms:
2(1 + 2l) = 20
(1 * 2 + 2l * 2) = 20
(2 + 4l) = 20

Solving
2 + 4l = 20

Solving for variable 'l'.

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

Add '-2' to each side of the equation.
2 + -2 + 4l = 20 + -2

Combine like terms: 2 + -2 = 0
0 + 4l = 20 + -2
4l = 20 + -2

Combine like terms: 20 + -2 = 18
4l = 18

Divide each side by '4'.
l = 4.5

Simplifying
l = 4.5

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