7+6n-2=21+2n

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Solution for 7+6n-2=21+2n equation:


Simplifying
7 + 6n + -2 = 21 + 2n

Reorder the terms:
7 + -2 + 6n = 21 + 2n

Combine like terms: 7 + -2 = 5
5 + 6n = 21 + 2n

Solving
5 + 6n = 21 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
5 + 6n + -2n = 21 + 2n + -2n

Combine like terms: 6n + -2n = 4n
5 + 4n = 21 + 2n + -2n

Combine like terms: 2n + -2n = 0
5 + 4n = 21 + 0
5 + 4n = 21

Add '-5' to each side of the equation.
5 + -5 + 4n = 21 + -5

Combine like terms: 5 + -5 = 0
0 + 4n = 21 + -5
4n = 21 + -5

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

Divide each side by '4'.
n = 4

Simplifying
n = 4

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