15=2(2x+9)-x

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Solution for 15=2(2x+9)-x equation:


Simplifying
15 = 2(2x + 9) + -1x

Reorder the terms:
15 = 2(9 + 2x) + -1x
15 = (9 * 2 + 2x * 2) + -1x
15 = (18 + 4x) + -1x

Combine like terms: 4x + -1x = 3x
15 = 18 + 3x

Solving
15 = 18 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
15 + -3x = 18 + 3x + -3x

Combine like terms: 3x + -3x = 0
15 + -3x = 18 + 0
15 + -3x = 18

Add '-15' to each side of the equation.
15 + -15 + -3x = 18 + -15

Combine like terms: 15 + -15 = 0
0 + -3x = 18 + -15
-3x = 18 + -15

Combine like terms: 18 + -15 = 3
-3x = 3

Divide each side by '-3'.
x = -1

Simplifying
x = -1

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