3n-12=4n-7

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


Simplifying
3n + -12 = 4n + -7

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

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

Solving
-12 + 3n = -7 + 4n

Solving for variable 'n'.

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

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

Combine like terms: 3n + -4n = -1n
-12 + -1n = -7 + 4n + -4n

Combine like terms: 4n + -4n = 0
-12 + -1n = -7 + 0
-12 + -1n = -7

Add '12' to each side of the equation.
-12 + 12 + -1n = -7 + 12

Combine like terms: -12 + 12 = 0
0 + -1n = -7 + 12
-1n = -7 + 12

Combine like terms: -7 + 12 = 5
-1n = 5

Divide each side by '-1'.
n = -5

Simplifying
n = -5

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