4[-8-2x-4x]+[3x+5]=21

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Solution for 4[-8-2x-4x]+[3x+5]=21 equation:


Simplifying
4[-8 + -2x + -4x] + [3x + 5] = 21

Combine like terms: -2x + -4x = -6x
4[-8 + -6x] + [3x + 5] = 21
[-8 * 4 + -6x * 4] + [3x + 5] = 21
[-32 + -24x] + [3x + 5] = 21

Reorder the terms:
-32 + -24x + [5 + 3x] = 21

Remove brackets around [5 + 3x]
-32 + -24x + 5 + 3x = 21

Reorder the terms:
-32 + 5 + -24x + 3x = 21

Combine like terms: -32 + 5 = -27
-27 + -24x + 3x = 21

Combine like terms: -24x + 3x = -21x
-27 + -21x = 21

Solving
-27 + -21x = 21

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + -21x = 21 + 27

Combine like terms: -27 + 27 = 0
0 + -21x = 21 + 27
-21x = 21 + 27

Combine like terms: 21 + 27 = 48
-21x = 48

Divide each side by '-21'.
x = -2.285714286

Simplifying
x = -2.285714286

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