-2(n+2)=21-3n

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Solution for -2(n+2)=21-3n equation:


Simplifying
-2(n + 2) = 21 + -3n

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

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

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
-4 + -2n + 3n = 21 + -3n + 3n

Combine like terms: -2n + 3n = 1n
-4 + 1n = 21 + -3n + 3n

Combine like terms: -3n + 3n = 0
-4 + 1n = 21 + 0
-4 + 1n = 21

Add '4' to each side of the equation.
-4 + 4 + 1n = 21 + 4

Combine like terms: -4 + 4 = 0
0 + 1n = 21 + 4
1n = 21 + 4

Combine like terms: 21 + 4 = 25
1n = 25

Divide each side by '1'.
n = 25

Simplifying
n = 25

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