9=9-2(2x-6)

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Solution for 9=9-2(2x-6) equation:


Simplifying
9 = 9 + -2(2x + -6)

Reorder the terms:
9 = 9 + -2(-6 + 2x)
9 = 9 + (-6 * -2 + 2x * -2)
9 = 9 + (12 + -4x)

Combine like terms: 9 + 12 = 21
9 = 21 + -4x

Solving
9 = 21 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
9 + 4x = 21 + -4x + 4x

Combine like terms: -4x + 4x = 0
9 + 4x = 21 + 0
9 + 4x = 21

Add '-9' to each side of the equation.
9 + -9 + 4x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + 4x = 21 + -9
4x = 21 + -9

Combine like terms: 21 + -9 = 12
4x = 12

Divide each side by '4'.
x = 3

Simplifying
x = 3

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