7=3-n

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Solution for 7=3-n equation: 


Simplifying
7 = 3 + -1n

Solving
7 = 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.
7 + n = 3 + -1n + n

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

Add '-7' to each side of the equation.
7 + -7 + n = 3 + -7

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

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

Simplifying
n = -4

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