(-9x-12)-(x-8)=

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Solution for (-9x-12)-(x-8)= equation:


Simplifying
(-9x + -12) + -1(x + -8) = 0

Reorder the terms:
(-12 + -9x) + -1(x + -8) = 0

Remove parenthesis around (-12 + -9x)
-12 + -9x + -1(x + -8) = 0

Reorder the terms:
-12 + -9x + -1(-8 + x) = 0
-12 + -9x + (-8 * -1 + x * -1) = 0
-12 + -9x + (8 + -1x) = 0

Reorder the terms:
-12 + 8 + -9x + -1x = 0

Combine like terms: -12 + 8 = -4
-4 + -9x + -1x = 0

Combine like terms: -9x + -1x = -10x
-4 + -10x = 0

Solving
-4 + -10x = 0

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + -10x = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -10x = 0 + 4
-10x = 0 + 4

Combine like terms: 0 + 4 = 4
-10x = 4

Divide each side by '-10'.
x = -0.4

Simplifying
x = -0.4

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