7n-2n=8n-(-4n)

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Solution for 7n-2n=8n-(-4n) equation:


Simplifying
7n + -2n = 8n + -1(-4n)

Combine like terms: 7n + -2n = 5n
5n = 8n + -1(-4n)

Remove parenthesis around (-4n)
5n = 8n + -1 * -4n

Multiply -1 * -4
5n = 8n + 4n

Combine like terms: 8n + 4n = 12n
5n = 12n

Solving
5n = 12n

Solving for variable 'n'.

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

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

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

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

Divide each side by '-7'.
n = 0

Simplifying
n = 0

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