25=7-3n

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Solution for 25=7-3n equation:


Simplifying
25 = 7 + -3n

Solving
25 = 7 + -3n

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
25 + 3n = 7 + -3n + 3n

Combine like terms: -3n + 3n = 0
25 + 3n = 7 + 0
25 + 3n = 7

Add '-25' to each side of the equation.
25 + -25 + 3n = 7 + -25

Combine like terms: 25 + -25 = 0
0 + 3n = 7 + -25
3n = 7 + -25

Combine like terms: 7 + -25 = -18
3n = -18

Divide each side by '3'.
n = -6

Simplifying
n = -6

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