0.2(0.1x+0.9)=-0.4

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Solution for 0.2(0.1x+0.9)=-0.4 equation: 


Simplifying
0.2(0.1x + 0.9) = -0.4

Reorder the terms:
0.2(0.9 + 0.1x) = -0.4
(0.9 * 0.2 + 0.1x * 0.2) = -0.4
(0.18 + 0.02x) = -0.4

Solving
0.18 + 0.02x = -0.4

Solving for variable 'x'.

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

Add '-0.18' to each side of the equation.
0.18 + -0.18 + 0.02x = -0.4 + -0.18

Combine like terms: 0.18 + -0.18 = 0.00
0.00 + 0.02x = -0.4 + -0.18
0.02x = -0.4 + -0.18

Combine like terms: -0.4 + -0.18 = -0.58
0.02x = -0.58

Divide each side by '0.02'.
x = -29

Simplifying
x = -29

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