x-18=0.4x

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Solution for x-18=0.4x equation:


Simplifying
x + -18 = 0.4x

Reorder the terms:
-18 + x = 0.4x

Solving
-18 + x = 0.4x

Solving for variable 'x'.

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

Add '-0.4x' to each side of the equation.
-18 + x + -0.4x = 0.4x + -0.4x

Combine like terms: x + -0.4x = 0.6x
-18 + 0.6x = 0.4x + -0.4x

Combine like terms: 0.4x + -0.4x = 0.0
-18 + 0.6x = 0.0

Add '18' to each side of the equation.
-18 + 18 + 0.6x = 0.0 + 18

Combine like terms: -18 + 18 = 0
0 + 0.6x = 0.0 + 18
0.6x = 0.0 + 18

Combine like terms: 0.0 + 18 = 18
0.6x = 18

Divide each side by '0.6'.
x = 30

Simplifying
x = 30

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