3x-9[x-2(2x+3)]=39

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Solution for 3x-9[x-2(2x+3)]=39 equation:


Simplifying
3x + -9[x + -2(2x + 3)] = 39

Reorder the terms:
3x + -9[x + -2(3 + 2x)] = 39
3x + -9[x + (3 * -2 + 2x * -2)] = 39
3x + -9[x + (-6 + -4x)] = 39

Reorder the terms:
3x + -9[-6 + x + -4x] = 39

Combine like terms: x + -4x = -3x
3x + -9[-6 + -3x] = 39
3x + [-6 * -9 + -3x * -9] = 39
3x + [54 + 27x] = 39

Reorder the terms:
54 + 3x + 27x = 39

Combine like terms: 3x + 27x = 30x
54 + 30x = 39

Solving
54 + 30x = 39

Solving for variable 'x'.

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

Add '-54' to each side of the equation.
54 + -54 + 30x = 39 + -54

Combine like terms: 54 + -54 = 0
0 + 30x = 39 + -54
30x = 39 + -54

Combine like terms: 39 + -54 = -15
30x = -15

Divide each side by '30'.
x = -0.5

Simplifying
x = -0.5

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