5[-3n-7]-1=99

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Solution for 5[-3n-7]-1=99 equation:


Simplifying
5[-3n + -7] + -1 = 99

Reorder the terms:
5[-7 + -3n] + -1 = 99
[-7 * 5 + -3n * 5] + -1 = 99
[-35 + -15n] + -1 = 99

Reorder the terms:
-35 + -1 + -15n = 99

Combine like terms: -35 + -1 = -36
-36 + -15n = 99

Solving
-36 + -15n = 99

Solving for variable 'n'.

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

Add '36' to each side of the equation.
-36 + 36 + -15n = 99 + 36

Combine like terms: -36 + 36 = 0
0 + -15n = 99 + 36
-15n = 99 + 36

Combine like terms: 99 + 36 = 135
-15n = 135

Divide each side by '-15'.
n = -9

Simplifying
n = -9

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