X-1=9-1

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Solution for X-1=9-1 equation: 


Simplifying
X + -1 = 9 + -1

Reorder the terms:
-1 + X = 9 + -1

Combine like terms: 9 + -1 = 8
-1 + X = 8

Solving
-1 + X = 8

Solving for variable 'X'.

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

Add '1' to each side of the equation.
-1 + 1 + X = 8 + 1

Combine like terms: -1 + 1 = 0
0 + X = 8 + 1
X = 8 + 1

Combine like terms: 8 + 1 = 9
X = 9

Simplifying
X = 9

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