21+2.5n=4n

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Solution for 21+2.5n=4n equation:


Simplifying
21 + 2.5n = 4n

Solving
21 + 2.5n = 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.
21 + 2.5n + -4n = 4n + -4n

Combine like terms: 2.5n + -4n = -1.5n
21 + -1.5n = 4n + -4n

Combine like terms: 4n + -4n = 0
21 + -1.5n = 0

Add '-21' to each side of the equation.
21 + -21 + -1.5n = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -1.5n = 0 + -21
-1.5n = 0 + -21

Combine like terms: 0 + -21 = -21
-1.5n = -21

Divide each side by '-1.5'.
n = 14

Simplifying
n = 14

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