-30=3n-12n

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Solution for -30=3n-12n equation:


Simplifying
-30 = 3n + -12n

Combine like terms: 3n + -12n = -9n
-30 = -9n

Solving
-30 = -9n

Solving for variable 'n'.

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

Add '9n' to each side of the equation.
-30 + 9n = -9n + 9n

Combine like terms: -9n + 9n = 0
-30 + 9n = 0

Add '30' to each side of the equation.
-30 + 30 + 9n = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 9n = 0 + 30
9n = 0 + 30

Combine like terms: 0 + 30 = 30
9n = 30

Divide each side by '9'.
n = 3.333333333

Simplifying
n = 3.333333333

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