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

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


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

Reorder the terms:
4x + -8(-4 + x) = 9(x + -9)
4x + (-4 * -8 + x * -8) = 9(x + -9)
4x + (32 + -8x) = 9(x + -9)

Reorder the terms:
32 + 4x + -8x = 9(x + -9)

Combine like terms: 4x + -8x = -4x
32 + -4x = 9(x + -9)

Reorder the terms:
32 + -4x = 9(-9 + x)
32 + -4x = (-9 * 9 + x * 9)
32 + -4x = (-81 + 9x)

Solving
32 + -4x = -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.
32 + -4x + -9x = -81 + 9x + -9x

Combine like terms: -4x + -9x = -13x
32 + -13x = -81 + 9x + -9x

Combine like terms: 9x + -9x = 0
32 + -13x = -81 + 0
32 + -13x = -81

Add '-32' to each side of the equation.
32 + -32 + -13x = -81 + -32

Combine like terms: 32 + -32 = 0
0 + -13x = -81 + -32
-13x = -81 + -32

Combine like terms: -81 + -32 = -113
-13x = -113

Divide each side by '-13'.
x = 8.692307692

Simplifying
x = 8.692307692

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