2(n-1)+n=2n+7

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Solution for 2(n-1)+n=2n+7 equation:


Simplifying
2(n + -1) + n = 2n + 7

Reorder the terms:
2(-1 + n) + n = 2n + 7
(-1 * 2 + n * 2) + n = 2n + 7
(-2 + 2n) + n = 2n + 7

Combine like terms: 2n + n = 3n
-2 + 3n = 2n + 7

Reorder the terms:
-2 + 3n = 7 + 2n

Solving
-2 + 3n = 7 + 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.
-2 + 3n + -2n = 7 + 2n + -2n

Combine like terms: 3n + -2n = 1n
-2 + 1n = 7 + 2n + -2n

Combine like terms: 2n + -2n = 0
-2 + 1n = 7 + 0
-2 + 1n = 7

Add '2' to each side of the equation.
-2 + 2 + 1n = 7 + 2

Combine like terms: -2 + 2 = 0
0 + 1n = 7 + 2
1n = 7 + 2

Combine like terms: 7 + 2 = 9
1n = 9

Divide each side by '1'.
n = 9

Simplifying
n = 9

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