(X-3)-9=8X

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Solution for (X-3)-9=8X equation:


Simplifying
(X + -3) + -9 = 8X

Reorder the terms:
(-3 + X) + -9 = 8X

Remove parenthesis around (-3 + X)
-3 + X + -9 = 8X

Reorder the terms:
-3 + -9 + X = 8X

Combine like terms: -3 + -9 = -12
-12 + X = 8X

Solving
-12 + X = 8X

Solving for variable 'X'.

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

Add '-8X' to each side of the equation.
-12 + X + -8X = 8X + -8X

Combine like terms: X + -8X = -7X
-12 + -7X = 8X + -8X

Combine like terms: 8X + -8X = 0
-12 + -7X = 0

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

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

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

Divide each side by '-7'.
X = -1.714285714

Simplifying
X = -1.714285714

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