.40*(x+138)=x

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Solution for .40*(x+138)=x equation:


Simplifying
0.40(x + 138) = x

Reorder the terms:
0.40(138 + x) = x
(138 * 0.40 + x * 0.40) = x
(55.2 + 0.40x) = x

Solving
55.2 + 0.40x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
55.2 + 0.40x + -1x = x + -1x

Combine like terms: 0.40x + -1x = -0.6x
55.2 + -0.6x = x + -1x

Combine like terms: x + -1x = 0
55.2 + -0.6x = 0

Add '-55.2' to each side of the equation.
55.2 + -55.2 + -0.6x = 0 + -55.2

Combine like terms: 55.2 + -55.2 = 0.0
0.0 + -0.6x = 0 + -55.2
-0.6x = 0 + -55.2

Combine like terms: 0 + -55.2 = -55.2
-0.6x = -55.2

Divide each side by '-0.6'.
x = 92

Simplifying
x = 92

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