-81=-3(-4x+5)

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Solution for -81=-3(-4x+5) equation:


Simplifying
-81 = -3(-4x + 5)

Reorder the terms:
-81 = -3(5 + -4x)
-81 = (5 * -3 + -4x * -3)
-81 = (-15 + 12x)

Solving
-81 = -15 + 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 = -15 + 12x + -12x

Combine like terms: 12x + -12x = 0
-81 + -12x = -15 + 0
-81 + -12x = -15

Add '81' to each side of the equation.
-81 + 81 + -12x = -15 + 81

Combine like terms: -81 + 81 = 0
0 + -12x = -15 + 81
-12x = -15 + 81

Combine like terms: -15 + 81 = 66
-12x = 66

Divide each side by '-12'.
x = -5.5

Simplifying
x = -5.5

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