0.4x-4=0.1(x+20)

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Solution for 0.4x-4=0.1(x+20) equation:


Simplifying
0.4x + -4 = 0.1(x + 20)

Reorder the terms:
-4 + 0.4x = 0.1(x + 20)

Reorder the terms:
-4 + 0.4x = 0.1(20 + x)
-4 + 0.4x = (20 * 0.1 + x * 0.1)
-4 + 0.4x = (2 + 0.1x)

Solving
-4 + 0.4x = 2 + 0.1x

Solving for variable 'x'.

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

Add '-0.1x' to each side of the equation.
-4 + 0.4x + -0.1x = 2 + 0.1x + -0.1x

Combine like terms: 0.4x + -0.1x = 0.3x
-4 + 0.3x = 2 + 0.1x + -0.1x

Combine like terms: 0.1x + -0.1x = 0.0
-4 + 0.3x = 2 + 0.0
-4 + 0.3x = 2

Add '4' to each side of the equation.
-4 + 4 + 0.3x = 2 + 4

Combine like terms: -4 + 4 = 0
0 + 0.3x = 2 + 4
0.3x = 2 + 4

Combine like terms: 2 + 4 = 6
0.3x = 6

Divide each side by '0.3'.
x = 20

Simplifying
x = 20

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