x+9(x-9)=9

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


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

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

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

Combine like terms: x + 9x = 10x
-81 + 10x = 9

Solving
-81 + 10x = 9

Solving for variable 'x'.

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

Add '81' to each side of the equation.
-81 + 81 + 10x = 9 + 81

Combine like terms: -81 + 81 = 0
0 + 10x = 9 + 81
10x = 9 + 81

Combine like terms: 9 + 81 = 90
10x = 90

Divide each side by '10'.
x = 9

Simplifying
x = 9

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