4n=4(40-n)

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Solution for 4n=4(40-n) equation: 


Simplifying
4n = 4(40 + -1n)
4n = (40 * 4 + -1n * 4)
4n = (160 + -4n)

Solving
4n = 160 + -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
4n + 4n = 160 + -4n + 4n

Combine like terms: 4n + 4n = 8n
8n = 160 + -4n + 4n

Combine like terms: -4n + 4n = 0
8n = 160 + 0
8n = 160

Divide each side by '8'.
n = 20

Simplifying
n = 20

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