-(1+3n)=-7

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Solution for -(1+3n)=-7 equation: 


Simplifying
-1(1 + 3n) = -7
(1 * -1 + 3n * -1) = -7
(-1 + -3n) = -7

Solving
-1 + -3n = -7

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 + -3n = -7 + 1

Combine like terms: -1 + 1 = 0
0 + -3n = -7 + 1
-3n = -7 + 1

Combine like terms: -7 + 1 = -6
-3n = -6

Divide each side by '-3'.
n = 2

Simplifying
n = 2

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