2n=2.5(n-4)

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Solution for 2n=2.5(n-4) equation:


Simplifying
2n = 2.5(n + -4)

Reorder the terms:
2n = 2.5(-4 + n)
2n = (-4 * 2.5 + n * 2.5)
2n = (-10 + 2.5n)

Solving
2n = -10 + 2.5n

Solving for variable 'n'.

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

Add '-2.5n' to each side of the equation.
2n + -2.5n = -10 + 2.5n + -2.5n

Combine like terms: 2n + -2.5n = -0.5n
-0.5n = -10 + 2.5n + -2.5n

Combine like terms: 2.5n + -2.5n = 0.0
-0.5n = -10 + 0.0
-0.5n = -10

Divide each side by '-0.5'.
n = 20

Simplifying
n = 20

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