-9(X-1)=9(X-9)

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


Simplifying
-9(X + -1) = 9(X + -9)

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

Reorder the terms:
9 + -9X = 9(-9 + X)
9 + -9X = (-9 * 9 + X * 9)
9 + -9X = (-81 + 9X)

Solving
9 + -9X = -81 + 9X

Solving for variable 'X'.

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

Add '-9X' to each side of the equation.
9 + -9X + -9X = -81 + 9X + -9X

Combine like terms: -9X + -9X = -18X
9 + -18X = -81 + 9X + -9X

Combine like terms: 9X + -9X = 0
9 + -18X = -81 + 0
9 + -18X = -81

Add '-9' to each side of the equation.
9 + -9 + -18X = -81 + -9

Combine like terms: 9 + -9 = 0
0 + -18X = -81 + -9
-18X = -81 + -9

Combine like terms: -81 + -9 = -90
-18X = -90

Divide each side by '-18'.
X = 5

Simplifying
X = 5

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