2n-7n-1=9

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Solution for 2n-7n-1=9 equation:


Simplifying
2n + -7n + -1 = 9

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

Combine like terms: 2n + -7n = -5n
-1 + -5n = 9

Solving
-1 + -5n = 9

Solving for variable 'n'.

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

Add '1' to each side of the equation.
-1 + 1 + -5n = 9 + 1

Combine like terms: -1 + 1 = 0
0 + -5n = 9 + 1
-5n = 9 + 1

Combine like terms: 9 + 1 = 10
-5n = 10

Divide each side by '-5'.
n = -2

Simplifying
n = -2

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