3=15-4n

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Solution for 3=15-4n equation:


Simplifying
3 = 15 + -4n

Solving
3 = 15 + -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.
3 + 4n = 15 + -4n + 4n

Combine like terms: -4n + 4n = 0
3 + 4n = 15 + 0
3 + 4n = 15

Add '-3' to each side of the equation.
3 + -3 + 4n = 15 + -3

Combine like terms: 3 + -3 = 0
0 + 4n = 15 + -3
4n = 15 + -3

Combine like terms: 15 + -3 = 12
4n = 12

Divide each side by '4'.
n = 3

Simplifying
n = 3

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