9(x+9)=8x-4

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Solution for 9(x+9)=8x-4 equation:


Simplifying
9(x + 9) = 8x + -4

Reorder the terms:
9(9 + x) = 8x + -4
(9 * 9 + x * 9) = 8x + -4
(81 + 9x) = 8x + -4

Reorder the terms:
81 + 9x = -4 + 8x

Solving
81 + 9x = -4 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
81 + 9x + -8x = -4 + 8x + -8x

Combine like terms: 9x + -8x = 1x
81 + 1x = -4 + 8x + -8x

Combine like terms: 8x + -8x = 0
81 + 1x = -4 + 0
81 + 1x = -4

Add '-81' to each side of the equation.
81 + -81 + 1x = -4 + -81

Combine like terms: 81 + -81 = 0
0 + 1x = -4 + -81
1x = -4 + -81

Combine like terms: -4 + -81 = -85
1x = -85

Divide each side by '1'.
x = -85

Simplifying
x = -85

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