3n+2(n+2)=9n+12

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Solution for 3n+2(n+2)=9n+12 equation:


Simplifying
3n + 2(n + 2) = 9n + 12

Reorder the terms:
3n + 2(2 + n) = 9n + 12
3n + (2 * 2 + n * 2) = 9n + 12
3n + (4 + 2n) = 9n + 12

Reorder the terms:
4 + 3n + 2n = 9n + 12

Combine like terms: 3n + 2n = 5n
4 + 5n = 9n + 12

Reorder the terms:
4 + 5n = 12 + 9n

Solving
4 + 5n = 12 + 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.
4 + 5n + -9n = 12 + 9n + -9n

Combine like terms: 5n + -9n = -4n
4 + -4n = 12 + 9n + -9n

Combine like terms: 9n + -9n = 0
4 + -4n = 12 + 0
4 + -4n = 12

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

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

Combine like terms: 12 + -4 = 8
-4n = 8

Divide each side by '-4'.
n = -2

Simplifying
n = -2

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