135=-7(3n-5)-4n

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Solution for 135=-7(3n-5)-4n equation:


Simplifying
135 = -7(3n + -5) + -4n

Reorder the terms:
135 = -7(-5 + 3n) + -4n
135 = (-5 * -7 + 3n * -7) + -4n
135 = (35 + -21n) + -4n

Combine like terms: -21n + -4n = -25n
135 = 35 + -25n

Solving
135 = 35 + -25n

Solving for variable 'n'.

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

Add '25n' to each side of the equation.
135 + 25n = 35 + -25n + 25n

Combine like terms: -25n + 25n = 0
135 + 25n = 35 + 0
135 + 25n = 35

Add '-135' to each side of the equation.
135 + -135 + 25n = 35 + -135

Combine like terms: 135 + -135 = 0
0 + 25n = 35 + -135
25n = 35 + -135

Combine like terms: 35 + -135 = -100
25n = -100

Divide each side by '25'.
n = -4

Simplifying
n = -4

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