7x=8x-9

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Solution for 7x=8x-9 equation: 


Simplifying
7x = 8x + -9

Reorder the terms:
7x = -9 + 8x

Solving
7x = -9 + 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.
7x + -8x = -9 + 8x + -8x

Combine like terms: 7x + -8x = -1x
-1x = -9 + 8x + -8x

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

Divide each side by '-1'.
x = 9

Simplifying
x = 9

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