7(l+4)=42

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Solution for 7(l+4)=42 equation: 


Simplifying
7(l + 4) = 42

Reorder the terms:
7(4 + l) = 42
(4 * 7 + l * 7) = 42
(28 + 7l) = 42

Solving
28 + 7l = 42

Solving for variable 'l'.

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

Add '-28' to each side of the equation.
28 + -28 + 7l = 42 + -28

Combine like terms: 28 + -28 = 0
0 + 7l = 42 + -28
7l = 42 + -28

Combine like terms: 42 + -28 = 14
7l = 14

Divide each side by '7'.
l = 2

Simplifying
l = 2

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