9(X-1)=63

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Solution for 9(X-1)=63 equation: 


Simplifying
9(X + -1) = 63

Reorder the terms:
9(-1 + X) = 63
(-1 * 9 + X * 9) = 63
(-9 + 9X) = 63

Solving
-9 + 9X = 63

Solving for variable 'X'.

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

Add '9' to each side of the equation.
-9 + 9 + 9X = 63 + 9

Combine like terms: -9 + 9 = 0
0 + 9X = 63 + 9
9X = 63 + 9

Combine like terms: 63 + 9 = 72
9X = 72

Divide each side by '9'.
X = 8

Simplifying
X = 8

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