-12=3n-7n

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Solution for -12=3n-7n equation:


Simplifying
-12 = 3n + -7n

Combine like terms: 3n + -7n = -4n
-12 = -4n

Solving
-12 = -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.
-12 + 4n = -4n + 4n

Combine like terms: -4n + 4n = 0
-12 + 4n = 0

Add '12' to each side of the equation.
-12 + 12 + 4n = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 4n = 0 + 12
4n = 0 + 12

Combine like terms: 0 + 12 = 12
4n = 12

Divide each side by '4'.
n = 3

Simplifying
n = 3

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