3n-4=7n+12

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Solution for 3n-4=7n+12 equation:


Simplifying
3n + -4 = 7n + 12

Reorder the terms:
-4 + 3n = 7n + 12

Reorder the terms:
-4 + 3n = 12 + 7n

Solving
-4 + 3n = 12 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
-4 + 3n + -7n = 12 + 7n + -7n

Combine like terms: 3n + -7n = -4n
-4 + -4n = 12 + 7n + -7n

Combine like terms: 7n + -7n = 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 = 16
-4n = 16

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

Simplifying
n = -4

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