6n+21=21n-15

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Solution for 6n+21=21n-15 equation:


Simplifying
6n + 21 = 21n + -15

Reorder the terms:
21 + 6n = 21n + -15

Reorder the terms:
21 + 6n = -15 + 21n

Solving
21 + 6n = -15 + 21n

Solving for variable 'n'.

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

Add '-21n' to each side of the equation.
21 + 6n + -21n = -15 + 21n + -21n

Combine like terms: 6n + -21n = -15n
21 + -15n = -15 + 21n + -21n

Combine like terms: 21n + -21n = 0
21 + -15n = -15 + 0
21 + -15n = -15

Add '-21' to each side of the equation.
21 + -21 + -15n = -15 + -21

Combine like terms: 21 + -21 = 0
0 + -15n = -15 + -21
-15n = -15 + -21

Combine like terms: -15 + -21 = -36
-15n = -36

Divide each side by '-15'.
n = 2.4

Simplifying
n = 2.4

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