3n+12=5n+7

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


Simplifying
3n + 12 = 5n + 7

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

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

Solving
12 + 3n = 7 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
12 + 3n + -5n = 7 + 5n + -5n

Combine like terms: 3n + -5n = -2n
12 + -2n = 7 + 5n + -5n

Combine like terms: 5n + -5n = 0
12 + -2n = 7 + 0
12 + -2n = 7

Add '-12' to each side of the equation.
12 + -12 + -2n = 7 + -12

Combine like terms: 12 + -12 = 0
0 + -2n = 7 + -12
-2n = 7 + -12

Combine like terms: 7 + -12 = -5
-2n = -5

Divide each side by '-2'.
n = 2.5

Simplifying
n = 2.5

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