8n-3-2n=21-4n

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Solution for 8n-3-2n=21-4n equation:


Simplifying
8n + -3 + -2n = 21 + -4n

Reorder the terms:
-3 + 8n + -2n = 21 + -4n

Combine like terms: 8n + -2n = 6n
-3 + 6n = 21 + -4n

Solving
-3 + 6n = 21 + -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.
-3 + 6n + 4n = 21 + -4n + 4n

Combine like terms: 6n + 4n = 10n
-3 + 10n = 21 + -4n + 4n

Combine like terms: -4n + 4n = 0
-3 + 10n = 21 + 0
-3 + 10n = 21

Add '3' to each side of the equation.
-3 + 3 + 10n = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 10n = 21 + 3
10n = 21 + 3

Combine like terms: 21 + 3 = 24
10n = 24

Divide each side by '10'.
n = 2.4

Simplifying
n = 2.4

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