9-x=8x+9

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Solution for 9-x=8x+9 equation:


Simplifying
9 + -1x = 8x + 9

Reorder the terms:
9 + -1x = 9 + 8x

Add '-9' to each side of the equation.
9 + -9 + -1x = 9 + -9 + 8x

Combine like terms: 9 + -9 = 0
0 + -1x = 9 + -9 + 8x
-1x = 9 + -9 + 8x

Combine like terms: 9 + -9 = 0
-1x = 0 + 8x
-1x = 8x

Solving
-1x = 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.
-1x + -8x = 8x + -8x

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

Combine like terms: 8x + -8x = 0
-9x = 0

Divide each side by '-9'.
x = 0

Simplifying
x = 0

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