8x-4-(-x-7)+9x+6=12x-7

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Solution for 8x-4-(-x-7)+9x+6=12x-7 equation:


Simplifying
8x + -4 + -1(-1x + -7) + 9x + 6 = 12x + -7

Reorder the terms:
8x + -4 + -1(-7 + -1x) + 9x + 6 = 12x + -7
8x + -4 + (-7 * -1 + -1x * -1) + 9x + 6 = 12x + -7
8x + -4 + (7 + 1x) + 9x + 6 = 12x + -7

Reorder the terms:
-4 + 7 + 6 + 8x + 1x + 9x = 12x + -7

Combine like terms: -4 + 7 = 3
3 + 6 + 8x + 1x + 9x = 12x + -7

Combine like terms: 3 + 6 = 9
9 + 8x + 1x + 9x = 12x + -7

Combine like terms: 8x + 1x = 9x
9 + 9x + 9x = 12x + -7

Combine like terms: 9x + 9x = 18x
9 + 18x = 12x + -7

Reorder the terms:
9 + 18x = -7 + 12x

Solving
9 + 18x = -7 + 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.
9 + 18x + -12x = -7 + 12x + -12x

Combine like terms: 18x + -12x = 6x
9 + 6x = -7 + 12x + -12x

Combine like terms: 12x + -12x = 0
9 + 6x = -7 + 0
9 + 6x = -7

Add '-9' to each side of the equation.
9 + -9 + 6x = -7 + -9

Combine like terms: 9 + -9 = 0
0 + 6x = -7 + -9
6x = -7 + -9

Combine like terms: -7 + -9 = -16
6x = -16

Divide each side by '6'.
x = -2.666666667

Simplifying
x = -2.666666667

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