9(x+9)=5[x-(9-x)]

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Solution for 9(x+9)=5[x-(9-x)] equation:


Simplifying
9(x + 9) = 5[x + -1(9 + -1x)]

Reorder the terms:
9(9 + x) = 5[x + -1(9 + -1x)]
(9 * 9 + x * 9) = 5[x + -1(9 + -1x)]
(81 + 9x) = 5[x + -1(9 + -1x)]
81 + 9x = 5[x + (9 * -1 + -1x * -1)]
81 + 9x = 5[x + (-9 + 1x)]

Reorder the terms:
81 + 9x = 5[-9 + x + 1x]

Combine like terms: x + 1x = 2x
81 + 9x = 5[-9 + 2x]
81 + 9x = [-9 * 5 + 2x * 5]
81 + 9x = [-45 + 10x]

Solving
81 + 9x = -45 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
81 + 9x + -10x = -45 + 10x + -10x

Combine like terms: 9x + -10x = -1x
81 + -1x = -45 + 10x + -10x

Combine like terms: 10x + -10x = 0
81 + -1x = -45 + 0
81 + -1x = -45

Add '-81' to each side of the equation.
81 + -81 + -1x = -45 + -81

Combine like terms: 81 + -81 = 0
0 + -1x = -45 + -81
-1x = -45 + -81

Combine like terms: -45 + -81 = -126
-1x = -126

Divide each side by '-1'.
x = 126

Simplifying
x = 126

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