171=-4(1-5n)-7

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Solution for 171=-4(1-5n)-7 equation:


Simplifying
171 = -4(1 + -5n) + -7
171 = (1 * -4 + -5n * -4) + -7
171 = (-4 + 20n) + -7

Reorder the terms:
171 = -4 + -7 + 20n

Combine like terms: -4 + -7 = -11
171 = -11 + 20n

Solving
171 = -11 + 20n

Solving for variable 'n'.

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

Add '-20n' to each side of the equation.
171 + -20n = -11 + 20n + -20n

Combine like terms: 20n + -20n = 0
171 + -20n = -11 + 0
171 + -20n = -11

Add '-171' to each side of the equation.
171 + -171 + -20n = -11 + -171

Combine like terms: 171 + -171 = 0
0 + -20n = -11 + -171
-20n = -11 + -171

Combine like terms: -11 + -171 = -182
-20n = -182

Divide each side by '-20'.
n = 9.1

Simplifying
n = 9.1

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