3[n]-(2[n]-2)=9

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Solution for 3[n]-(2[n]-2)=9 equation:


Simplifying
3[n] + -1(2[n] + -2) = 9

Reorder the terms:
3n + -1(-2 + 2n) = 9
3n + (-2 * -1 + 2n * -1) = 9
3n + (2 + -2n) = 9

Reorder the terms:
2 + 3n + -2n = 9

Combine like terms: 3n + -2n = 1n
2 + 1n = 9

Solving
2 + 1n = 9

Solving for variable 'n'.

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

Add '-2' to each side of the equation.
2 + -2 + 1n = 9 + -2

Combine like terms: 2 + -2 = 0
0 + 1n = 9 + -2
1n = 9 + -2

Combine like terms: 9 + -2 = 7
1n = 7

Divide each side by '1'.
n = 7

Simplifying
n = 7

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