20+n=-2(4+3n)

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Solution for 20+n=-2(4+3n) equation:


Simplifying
20 + n = -2(4 + 3n)
20 + n = (4 * -2 + 3n * -2)
20 + n = (-8 + -6n)

Solving
20 + n = -8 + -6n

Solving for variable 'n'.

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

Add '6n' to each side of the equation.
20 + n + 6n = -8 + -6n + 6n

Combine like terms: n + 6n = 7n
20 + 7n = -8 + -6n + 6n

Combine like terms: -6n + 6n = 0
20 + 7n = -8 + 0
20 + 7n = -8

Add '-20' to each side of the equation.
20 + -20 + 7n = -8 + -20

Combine like terms: 20 + -20 = 0
0 + 7n = -8 + -20
7n = -8 + -20

Combine like terms: -8 + -20 = -28
7n = -28

Divide each side by '7'.
n = -4

Simplifying
n = -4

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