4+12n-2=9n+42-2n

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Solution for 4+12n-2=9n+42-2n equation:


Simplifying
4 + 12n + -2 = 9n + 42 + -2n

Reorder the terms:
4 + -2 + 12n = 9n + 42 + -2n

Combine like terms: 4 + -2 = 2
2 + 12n = 9n + 42 + -2n

Reorder the terms:
2 + 12n = 42 + 9n + -2n

Combine like terms: 9n + -2n = 7n
2 + 12n = 42 + 7n

Solving
2 + 12n = 42 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
2 + 12n + -7n = 42 + 7n + -7n

Combine like terms: 12n + -7n = 5n
2 + 5n = 42 + 7n + -7n

Combine like terms: 7n + -7n = 0
2 + 5n = 42 + 0
2 + 5n = 42

Add '-2' to each side of the equation.
2 + -2 + 5n = 42 + -2

Combine like terms: 2 + -2 = 0
0 + 5n = 42 + -2
5n = 42 + -2

Combine like terms: 42 + -2 = 40
5n = 40

Divide each side by '5'.
n = 8

Simplifying
n = 8

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