4=-(3+n)

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Solution for 4=-(3+n) equation:


Simplifying
4 = -1(3 + n)
4 = (3 * -1 + n * -1)
4 = (-3 + -1n)

Solving
4 = -3 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
4 + n = -3 + -1n + n

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

Add '-4' to each side of the equation.
4 + -4 + n = -3 + -4

Combine like terms: 4 + -4 = 0
0 + n = -3 + -4
n = -3 + -4

Combine like terms: -3 + -4 = -7
n = -7

Simplifying
n = -7

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