[5-2n]=7

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Solution for [5-2n]=7 equation: 


Simplifying
[5 + -2n] = 7

Remove brackets around [5 + -2n]
5 + -2n = 7

Solving
5 + -2n = 7

Solving for variable 'n'.

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

Add '-5' to each side of the equation.
5 + -5 + -2n = 7 + -5

Combine like terms: 5 + -5 = 0
0 + -2n = 7 + -5
-2n = 7 + -5

Combine like terms: 7 + -5 = 2
-2n = 2

Divide each side by '-2'.
n = -1

Simplifying
n = -1

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