9w+21=4n+57

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Solution for 9w+21=4n+57 equation:


Simplifying
9w + 21 = 4n + 57

Reorder the terms:
21 + 9w = 4n + 57

Reorder the terms:
21 + 9w = 57 + 4n

Solving
21 + 9w = 57 + 4n

Solving for variable 'w'.

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

Add '-21' to each side of the equation.
21 + -21 + 9w = 57 + -21 + 4n

Combine like terms: 21 + -21 = 0
0 + 9w = 57 + -21 + 4n
9w = 57 + -21 + 4n

Combine like terms: 57 + -21 = 36
9w = 36 + 4n

Divide each side by '9'.
w = 4 + 0.4444444444n

Simplifying
w = 4 + 0.4444444444n

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