128=-3(6x-7)-1

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Solution for 128=-3(6x-7)-1 equation:


Simplifying
128 = -3(6x + -7) + -1

Reorder the terms:
128 = -3(-7 + 6x) + -1
128 = (-7 * -3 + 6x * -3) + -1
128 = (21 + -18x) + -1

Reorder the terms:
128 = 21 + -1 + -18x

Combine like terms: 21 + -1 = 20
128 = 20 + -18x

Solving
128 = 20 + -18x

Solving for variable 'x'.

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

Add '18x' to each side of the equation.
128 + 18x = 20 + -18x + 18x

Combine like terms: -18x + 18x = 0
128 + 18x = 20 + 0
128 + 18x = 20

Add '-128' to each side of the equation.
128 + -128 + 18x = 20 + -128

Combine like terms: 128 + -128 = 0
0 + 18x = 20 + -128
18x = 20 + -128

Combine like terms: 20 + -128 = -108
18x = -108

Divide each side by '18'.
x = -6

Simplifying
x = -6

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