10x+12-9-7n+4n=31

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Solution for 10x+12-9-7n+4n=31 equation:


Simplifying
10x + 12 + -9 + -7n + 4n = 31

Reorder the terms:
12 + -9 + -7n + 4n + 10x = 31

Combine like terms: 12 + -9 = 3
3 + -7n + 4n + 10x = 31

Combine like terms: -7n + 4n = -3n
3 + -3n + 10x = 31

Solving
3 + -3n + 10x = 31

Solving for variable 'n'.

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

Add '-3' to each side of the equation.
3 + -3n + -3 + 10x = 31 + -3

Reorder the terms:
3 + -3 + -3n + 10x = 31 + -3

Combine like terms: 3 + -3 = 0
0 + -3n + 10x = 31 + -3
-3n + 10x = 31 + -3

Combine like terms: 31 + -3 = 28
-3n + 10x = 28

Add '-10x' to each side of the equation.
-3n + 10x + -10x = 28 + -10x

Combine like terms: 10x + -10x = 0
-3n + 0 = 28 + -10x
-3n = 28 + -10x

Divide each side by '-3'.
n = -9.333333333 + 3.333333333x

Simplifying
n = -9.333333333 + 3.333333333x

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