3n+9=7-15

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Solution for 3n+9=7-15 equation:


Simplifying
3n + 9 = 7 + -15

Reorder the terms:
9 + 3n = 7 + -15

Combine like terms: 7 + -15 = -8
9 + 3n = -8

Solving
9 + 3n = -8

Solving for variable 'n'.

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

Add '-9' to each side of the equation.
9 + -9 + 3n = -8 + -9

Combine like terms: 9 + -9 = 0
0 + 3n = -8 + -9
3n = -8 + -9

Combine like terms: -8 + -9 = -17
3n = -17

Divide each side by '3'.
n = -5.666666667

Simplifying
n = -5.666666667

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