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

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


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

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

Combine like terms: 2n + 3n = 5n
3 + 5n = 21n + -4

Reorder the terms:
3 + 5n = -4 + 21n

Solving
3 + 5n = -4 + 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.
3 + 5n + -21n = -4 + 21n + -21n

Combine like terms: 5n + -21n = -16n
3 + -16n = -4 + 21n + -21n

Combine like terms: 21n + -21n = 0
3 + -16n = -4 + 0
3 + -16n = -4

Add '-3' to each side of the equation.
3 + -3 + -16n = -4 + -3

Combine like terms: 3 + -3 = 0
0 + -16n = -4 + -3
-16n = -4 + -3

Combine like terms: -4 + -3 = -7
-16n = -7

Divide each side by '-16'.
n = 0.4375

Simplifying
n = 0.4375

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