n+90=4n

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Solution for n+90=4n equation:


Simplifying
n + 90 = 4n

Reorder the terms:
90 + n = 4n

Solving
90 + n = 4n

Solving for variable 'n'.

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

Add '-4n' to each side of the equation.
90 + n + -4n = 4n + -4n

Combine like terms: n + -4n = -3n
90 + -3n = 4n + -4n

Combine like terms: 4n + -4n = 0
90 + -3n = 0

Add '-90' to each side of the equation.
90 + -90 + -3n = 0 + -90

Combine like terms: 90 + -90 = 0
0 + -3n = 0 + -90
-3n = 0 + -90

Combine like terms: 0 + -90 = -90
-3n = -90

Divide each side by '-3'.
n = 30

Simplifying
n = 30

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