0.9=(0.4+x)-(0.4x)

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Solution for 0.9=(0.4+x)-(0.4x) equation:


Simplifying
0.9 = (0.4 + x) + -1(0.4x)

Remove parenthesis around (0.4 + x)
0.9 = 0.4 + x + -1(0.4x)

Remove parenthesis around (0.4x)
0.9 = 0.4 + x + -1 * 0.4x

Multiply -1 * 0.4
0.9 = 0.4 + x + -0.4x

Combine like terms: x + -0.4x = 0.6x
0.9 = 0.4 + 0.6x

Solving
0.9 = 0.4 + 0.6x

Solving for variable 'x'.

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

Add '-0.6x' to each side of the equation.
0.9 + -0.6x = 0.4 + 0.6x + -0.6x

Combine like terms: 0.6x + -0.6x = 0.0
0.9 + -0.6x = 0.4 + 0.0
0.9 + -0.6x = 0.4

Add '-0.9' to each side of the equation.
0.9 + -0.9 + -0.6x = 0.4 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + -0.6x = 0.4 + -0.9
-0.6x = 0.4 + -0.9

Combine like terms: 0.4 + -0.9 = -0.5
-0.6x = -0.5

Divide each side by '-0.6'.
x = 0.8333333333

Simplifying
x = 0.8333333333

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