8x-0.4=9x

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Solution for 8x-0.4=9x equation:


Simplifying
8x + -0.4 = 9x

Reorder the terms:
-0.4 + 8x = 9x

Solving
-0.4 + 8x = 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.
-0.4 + 8x + -9x = 9x + -9x

Combine like terms: 8x + -9x = -1x
-0.4 + -1x = 9x + -9x

Combine like terms: 9x + -9x = 0
-0.4 + -1x = 0

Add '0.4' to each side of the equation.
-0.4 + 0.4 + -1x = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + -1x = 0 + 0.4
-1x = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
-1x = 0.4

Divide each side by '-1'.
x = -0.4

Simplifying
x = -0.4

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