-2n+9n-343=0

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Solution for -2n+9n-343=0 equation:


Simplifying
-2n + 9n + -343 = 0

Reorder the terms:
-343 + -2n + 9n = 0

Combine like terms: -2n + 9n = 7n
-343 + 7n = 0

Solving
-343 + 7n = 0

Solving for variable 'n'.

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

Add '343' to each side of the equation.
-343 + 343 + 7n = 0 + 343

Combine like terms: -343 + 343 = 0
0 + 7n = 0 + 343
7n = 0 + 343

Combine like terms: 0 + 343 = 343
7n = 343

Divide each side by '7'.
n = 49

Simplifying
n = 49

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