5n+9=7(n-1)-2n

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Solution for 5n+9=7(n-1)-2n equation: 


Simplifying
5n + 9 = 7(n + -1) + -2n

Reorder the terms:
9 + 5n = 7(n + -1) + -2n

Reorder the terms:
9 + 5n = 7(-1 + n) + -2n
9 + 5n = (-1 * 7 + n * 7) + -2n
9 + 5n = (-7 + 7n) + -2n

Combine like terms: 7n + -2n = 5n
9 + 5n = -7 + 5n

Add '-5n' to each side of the equation.
9 + 5n + -5n = -7 + 5n + -5n

Combine like terms: 5n + -5n = 0
9 + 0 = -7 + 5n + -5n
9 = -7 + 5n + -5n

Combine like terms: 5n + -5n = 0
9 = -7 + 0
9 = -7

Solving
9 = -7

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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