n-3n=20-4n

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Solution for n-3n=20-4n equation: 


Simplifying
n + -3n = 20 + -4n

Combine like terms: n + -3n = -2n
-2n = 20 + -4n

Solving
-2n = 20 + -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.
-2n + 4n = 20 + -4n + 4n

Combine like terms: -2n + 4n = 2n
2n = 20 + -4n + 4n

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

Divide each side by '2'.
n = 10

Simplifying
n = 10

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