81=-3(1-4x)

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Solution for 81=-3(1-4x) equation:


Simplifying
81 = -3(1 + -4x)
81 = (1 * -3 + -4x * -3)
81 = (-3 + 12x)

Solving
81 = -3 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
81 + -12x = -3 + 12x + -12x

Combine like terms: 12x + -12x = 0
81 + -12x = -3 + 0
81 + -12x = -3

Add '-81' to each side of the equation.
81 + -81 + -12x = -3 + -81

Combine like terms: 81 + -81 = 0
0 + -12x = -3 + -81
-12x = -3 + -81

Combine like terms: -3 + -81 = -84
-12x = -84

Divide each side by '-12'.
x = 7

Simplifying
x = 7

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