n-3(4+5n)=7n-12

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Solution for n-3(4+5n)=7n-12 equation:


Simplifying
n + -3(4 + 5n) = 7n + -12
n + (4 * -3 + 5n * -3) = 7n + -12
n + (-12 + -15n) = 7n + -12

Reorder the terms:
-12 + n + -15n = 7n + -12

Combine like terms: n + -15n = -14n
-12 + -14n = 7n + -12

Reorder the terms:
-12 + -14n = -12 + 7n

Add '12' to each side of the equation.
-12 + 12 + -14n = -12 + 12 + 7n

Combine like terms: -12 + 12 = 0
0 + -14n = -12 + 12 + 7n
-14n = -12 + 12 + 7n

Combine like terms: -12 + 12 = 0
-14n = 0 + 7n
-14n = 7n

Solving
-14n = 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.
-14n + -7n = 7n + -7n

Combine like terms: -14n + -7n = -21n
-21n = 7n + -7n

Combine like terms: 7n + -7n = 0
-21n = 0

Divide each side by '-21'.
n = 0

Simplifying
n = 0

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