X-9=2(X-5)-15

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Solution for X-9=2(X-5)-15 equation: 


Simplifying
X + -9 = 2(X + -5) + -15

Reorder the terms:
-9 + X = 2(X + -5) + -15

Reorder the terms:
-9 + X = 2(-5 + X) + -15
-9 + X = (-5 * 2 + X * 2) + -15
-9 + X = (-10 + 2X) + -15

Reorder the terms:
-9 + X = -10 + -15 + 2X

Combine like terms: -10 + -15 = -25
-9 + X = -25 + 2X

Solving
-9 + X = -25 + 2X

Solving for variable 'X'.

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

Add '-2X' to each side of the equation.
-9 + X + -2X = -25 + 2X + -2X

Combine like terms: X + -2X = -1X
-9 + -1X = -25 + 2X + -2X

Combine like terms: 2X + -2X = 0
-9 + -1X = -25 + 0
-9 + -1X = -25

Add '9' to each side of the equation.
-9 + 9 + -1X = -25 + 9

Combine like terms: -9 + 9 = 0
0 + -1X = -25 + 9
-1X = -25 + 9

Combine like terms: -25 + 9 = -16
-1X = -16

Divide each side by '-1'.
X = 16

Simplifying
X = 16

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