-[3x+(9x+7)]=

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Solution for -[3x+(9x+7)]= equation:


Simplifying
-1[3x + (9x + 7)] = 0

Reorder the terms:
-1[3x + (7 + 9x)] = 0

Remove parenthesis around (7 + 9x)
-1[3x + 7 + 9x] = 0

Reorder the terms:
-1[7 + 3x + 9x] = 0

Combine like terms: 3x + 9x = 12x
-1[7 + 12x] = 0
[7 * -1 + 12x * -1] = 0
[-7 + -12x] = 0

Solving
-7 + -12x = 0

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + -12x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -12x = 0 + 7
-12x = 0 + 7

Combine like terms: 0 + 7 = 7
-12x = 7

Divide each side by '-12'.
x = -0.5833333333

Simplifying
x = -0.5833333333

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