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

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


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

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

Reorder the terms:
-18 + 9 + 2x = 2x + -9(x + -9)

Combine like terms: -18 + 9 = -9
-9 + 2x = 2x + -9(x + -9)

Reorder the terms:
-9 + 2x = 2x + -9(-9 + x)
-9 + 2x = 2x + (-9 * -9 + x * -9)
-9 + 2x = 2x + (81 + -9x)

Reorder the terms:
-9 + 2x = 81 + 2x + -9x

Combine like terms: 2x + -9x = -7x
-9 + 2x = 81 + -7x

Solving
-9 + 2x = 81 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-9 + 2x + 7x = 81 + -7x + 7x

Combine like terms: 2x + 7x = 9x
-9 + 9x = 81 + -7x + 7x

Combine like terms: -7x + 7x = 0
-9 + 9x = 81 + 0
-9 + 9x = 81

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

Combine like terms: -9 + 9 = 0
0 + 9x = 81 + 9
9x = 81 + 9

Combine like terms: 81 + 9 = 90
9x = 90

Divide each side by '9'.
x = 10

Simplifying
x = 10

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