-18=2(7-4n)+2(2n-2)

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Solution for -18=2(7-4n)+2(2n-2) equation:


Simplifying
-18 = 2(7 + -4n) + 2(2n + -2)
-18 = (7 * 2 + -4n * 2) + 2(2n + -2)
-18 = (14 + -8n) + 2(2n + -2)

Reorder the terms:
-18 = 14 + -8n + 2(-2 + 2n)
-18 = 14 + -8n + (-2 * 2 + 2n * 2)
-18 = 14 + -8n + (-4 + 4n)

Reorder the terms:
-18 = 14 + -4 + -8n + 4n

Combine like terms: 14 + -4 = 10
-18 = 10 + -8n + 4n

Combine like terms: -8n + 4n = -4n
-18 = 10 + -4n

Solving
-18 = 10 + -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
-18 + 4n = 10 + -4n + 4n

Combine like terms: -4n + 4n = 0
-18 + 4n = 10 + 0
-18 + 4n = 10

Add '18' to each side of the equation.
-18 + 18 + 4n = 10 + 18

Combine like terms: -18 + 18 = 0
0 + 4n = 10 + 18
4n = 10 + 18

Combine like terms: 10 + 18 = 28
4n = 28

Divide each side by '4'.
n = 7

Simplifying
n = 7

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