1-2n-2n=-15

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Solution for 1-2n-2n=-15 equation: 


Simplifying
1 + -2n + -2n = -15

Combine like terms: -2n + -2n = -4n
1 + -4n = -15

Solving
1 + -4n = -15

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 + -4n = -15 + -1

Combine like terms: 1 + -1 = 0
0 + -4n = -15 + -1
-4n = -15 + -1

Combine like terms: -15 + -1 = -16
-4n = -16

Divide each side by '-4'.
n = 4

Simplifying
n = 4

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