2n-(-1)=9

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


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

Multiply -1 * -1
2n + 1 = 9

Reorder the terms:
1 + 2n = 9

Solving
1 + 2n = 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 + 2n = 9 + -1

Combine like terms: 1 + -1 = 0
0 + 2n = 9 + -1
2n = 9 + -1

Combine like terms: 9 + -1 = 8
2n = 8

Divide each side by '2'.
n = 4

Simplifying
n = 4

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