-90=-6(3n+6)

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Solution for -90=-6(3n+6) equation:


Simplifying
-90 = -6(3n + 6)

Reorder the terms:
-90 = -6(6 + 3n)
-90 = (6 * -6 + 3n * -6)
-90 = (-36 + -18n)

Solving
-90 = -36 + -18n

Solving for variable 'n'.

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

Add '18n' to each side of the equation.
-90 + 18n = -36 + -18n + 18n

Combine like terms: -18n + 18n = 0
-90 + 18n = -36 + 0
-90 + 18n = -36

Add '90' to each side of the equation.
-90 + 90 + 18n = -36 + 90

Combine like terms: -90 + 90 = 0
0 + 18n = -36 + 90
18n = -36 + 90

Combine like terms: -36 + 90 = 54
18n = 54

Divide each side by '18'.
n = 3

Simplifying
n = 3

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