3(x+9)=9(9+x)

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Solution for 3(x+9)=9(9+x) equation:


Simplifying
3(x + 9) = 9(9 + x)

Reorder the terms:
3(9 + x) = 9(9 + x)
(9 * 3 + x * 3) = 9(9 + x)
(27 + 3x) = 9(9 + x)
27 + 3x = (9 * 9 + x * 9)
27 + 3x = (81 + 9x)

Solving
27 + 3x = 81 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
27 + 3x + -9x = 81 + 9x + -9x

Combine like terms: 3x + -9x = -6x
27 + -6x = 81 + 9x + -9x

Combine like terms: 9x + -9x = 0
27 + -6x = 81 + 0
27 + -6x = 81

Add '-27' to each side of the equation.
27 + -27 + -6x = 81 + -27

Combine like terms: 27 + -27 = 0
0 + -6x = 81 + -27
-6x = 81 + -27

Combine like terms: 81 + -27 = 54
-6x = 54

Divide each side by '-6'.
x = -9

Simplifying
x = -9

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