3n-7=9(5+n)

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Solution for 3n-7=9(5+n) equation:


Simplifying
3n + -7 = 9(5 + n)

Reorder the terms:
-7 + 3n = 9(5 + n)
-7 + 3n = (5 * 9 + n * 9)
-7 + 3n = (45 + 9n)

Solving
-7 + 3n = 45 + 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.
-7 + 3n + -9n = 45 + 9n + -9n

Combine like terms: 3n + -9n = -6n
-7 + -6n = 45 + 9n + -9n

Combine like terms: 9n + -9n = 0
-7 + -6n = 45 + 0
-7 + -6n = 45

Add '7' to each side of the equation.
-7 + 7 + -6n = 45 + 7

Combine like terms: -7 + 7 = 0
0 + -6n = 45 + 7
-6n = 45 + 7

Combine like terms: 45 + 7 = 52
-6n = 52

Divide each side by '-6'.
n = -8.666666667

Simplifying
n = -8.666666667

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