15-4n=-4(n-5)

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Solution for 15-4n=-4(n-5) equation: 


Simplifying
15 + -4n = -4(n + -5)

Reorder the terms:
15 + -4n = -4(-5 + n)
15 + -4n = (-5 * -4 + n * -4)
15 + -4n = (20 + -4n)

Add '4n' to each side of the equation.
15 + -4n + 4n = 20 + -4n + 4n

Combine like terms: -4n + 4n = 0
15 + 0 = 20 + -4n + 4n
15 = 20 + -4n + 4n

Combine like terms: -4n + 4n = 0
15 = 20 + 0
15 = 20

Solving
15 = 20

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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