-4(0.2x+0.4)-0.9=-0.1

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Solution for -4(0.2x+0.4)-0.9=-0.1 equation:


Simplifying
-4(0.2x + 0.4) + -0.9 = -0.1

Reorder the terms:
-4(0.4 + 0.2x) + -0.9 = -0.1
(0.4 * -4 + 0.2x * -4) + -0.9 = -0.1
(-1.6 + -0.8x) + -0.9 = -0.1

Reorder the terms:
-1.6 + -0.9 + -0.8x = -0.1

Combine like terms: -1.6 + -0.9 = -2.5
-2.5 + -0.8x = -0.1

Solving
-2.5 + -0.8x = -0.1

Solving for variable 'x'.

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

Add '2.5' to each side of the equation.
-2.5 + 2.5 + -0.8x = -0.1 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + -0.8x = -0.1 + 2.5
-0.8x = -0.1 + 2.5

Combine like terms: -0.1 + 2.5 = 2.4
-0.8x = 2.4

Divide each side by '-0.8'.
x = -3

Simplifying
x = -3

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