645+3n=900

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Solution for 645+3n=900 equation: 


Simplifying
645 + 3n = 900

Solving
645 + 3n = 900

Solving for variable 'n'.

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

Add '-645' to each side of the equation.
645 + -645 + 3n = 900 + -645

Combine like terms: 645 + -645 = 0
0 + 3n = 900 + -645
3n = 900 + -645

Combine like terms: 900 + -645 = 255
3n = 255

Divide each side by '3'.
n = 85

Simplifying
n = 85

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