(X-9)-3=x-20

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Solution for (X-9)-3=x-20 equation:


Simplifying
(X + -9) + -3 = x + -20

Reorder the terms:
(-9 + X) + -3 = x + -20

Remove parenthesis around (-9 + X)
-9 + X + -3 = x + -20

Reorder the terms:
-9 + -3 + X = x + -20

Combine like terms: -9 + -3 = -12
-12 + X = x + -20

Reorder the terms:
-12 + X = -20 + x

Solving
-12 + X = -20 + x

Solving for variable 'X'.

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

Add '12' to each side of the equation.
-12 + 12 + X = -20 + 12 + x

Combine like terms: -12 + 12 = 0
0 + X = -20 + 12 + x
X = -20 + 12 + x

Combine like terms: -20 + 12 = -8
X = -8 + x

Simplifying
X = -8 + x

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