90=3(-5n-5)

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Solution for 90=3(-5n-5) equation:


Simplifying
90 = 3(-5n + -5)

Reorder the terms:
90 = 3(-5 + -5n)
90 = (-5 * 3 + -5n * 3)
90 = (-15 + -15n)

Solving
90 = -15 + -15n

Solving for variable 'n'.

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

Add '15n' to each side of the equation.
90 + 15n = -15 + -15n + 15n

Combine like terms: -15n + 15n = 0
90 + 15n = -15 + 0
90 + 15n = -15

Add '-90' to each side of the equation.
90 + -90 + 15n = -15 + -90

Combine like terms: 90 + -90 = 0
0 + 15n = -15 + -90
15n = -15 + -90

Combine like terms: -15 + -90 = -105
15n = -105

Divide each side by '15'.
n = -7

Simplifying
n = -7

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