3n-5=7n+12

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Solution for 3n-5=7n+12 equation:


Simplifying
3n + -5 = 7n + 12

Reorder the terms:
-5 + 3n = 7n + 12

Reorder the terms:
-5 + 3n = 12 + 7n

Solving
-5 + 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.
-5 + 3n + -7n = 12 + 7n + -7n

Combine like terms: 3n + -7n = -4n
-5 + -4n = 12 + 7n + -7n

Combine like terms: 7n + -7n = 0
-5 + -4n = 12 + 0
-5 + -4n = 12

Add '5' to each side of the equation.
-5 + 5 + -4n = 12 + 5

Combine like terms: -5 + 5 = 0
0 + -4n = 12 + 5
-4n = 12 + 5

Combine like terms: 12 + 5 = 17
-4n = 17

Divide each side by '-4'.
n = -4.25

Simplifying
n = -4.25

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