(4x-16)-(4x+8)=3x-81

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Solution for (4x-16)-(4x+8)=3x-81 equation:


Simplifying
(4x + -16) + -1(4x + 8) = 3x + -81

Reorder the terms:
(-16 + 4x) + -1(4x + 8) = 3x + -81

Remove parenthesis around (-16 + 4x)
-16 + 4x + -1(4x + 8) = 3x + -81

Reorder the terms:
-16 + 4x + -1(8 + 4x) = 3x + -81
-16 + 4x + (8 * -1 + 4x * -1) = 3x + -81
-16 + 4x + (-8 + -4x) = 3x + -81

Reorder the terms:
-16 + -8 + 4x + -4x = 3x + -81

Combine like terms: -16 + -8 = -24
-24 + 4x + -4x = 3x + -81

Combine like terms: 4x + -4x = 0
-24 + 0 = 3x + -81
-24 = 3x + -81

Reorder the terms:
-24 = -81 + 3x

Solving
-24 = -81 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-24 + -3x = -81 + 3x + -3x

Combine like terms: 3x + -3x = 0
-24 + -3x = -81 + 0
-24 + -3x = -81

Add '24' to each side of the equation.
-24 + 24 + -3x = -81 + 24

Combine like terms: -24 + 24 = 0
0 + -3x = -81 + 24
-3x = -81 + 24

Combine like terms: -81 + 24 = -57
-3x = -57

Divide each side by '-3'.
x = 19

Simplifying
x = 19

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