17+2n=21+n

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Solution for 17+2n=21+n equation:


Simplifying
17 + 2n = 21 + n

Solving
17 + 2n = 21 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
17 + 2n + -1n = 21 + n + -1n

Combine like terms: 2n + -1n = 1n
17 + 1n = 21 + n + -1n

Combine like terms: n + -1n = 0
17 + 1n = 21 + 0
17 + 1n = 21

Add '-17' to each side of the equation.
17 + -17 + 1n = 21 + -17

Combine like terms: 17 + -17 = 0
0 + 1n = 21 + -17
1n = 21 + -17

Combine like terms: 21 + -17 = 4
1n = 4

Divide each side by '1'.
n = 4

Simplifying
n = 4

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