.4x+.1=.2(x+20)

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Solution for .4x+.1=.2(x+20) equation:


Simplifying
0.4x + 0.1 = 0.2(x + 20)

Reorder the terms:
0.1 + 0.4x = 0.2(x + 20)

Reorder the terms:
0.1 + 0.4x = 0.2(20 + x)
0.1 + 0.4x = (20 * 0.2 + x * 0.2)
0.1 + 0.4x = (4 + 0.2x)

Solving
0.1 + 0.4x = 4 + 0.2x

Solving for variable 'x'.

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

Add '-0.2x' to each side of the equation.
0.1 + 0.4x + -0.2x = 4 + 0.2x + -0.2x

Combine like terms: 0.4x + -0.2x = 0.2x
0.1 + 0.2x = 4 + 0.2x + -0.2x

Combine like terms: 0.2x + -0.2x = 0.0
0.1 + 0.2x = 4 + 0.0
0.1 + 0.2x = 4

Add '-0.1' to each side of the equation.
0.1 + -0.1 + 0.2x = 4 + -0.1

Combine like terms: 0.1 + -0.1 = 0.0
0.0 + 0.2x = 4 + -0.1
0.2x = 4 + -0.1

Combine like terms: 4 + -0.1 = 3.9
0.2x = 3.9

Divide each side by '0.2'.
x = 19.5

Simplifying
x = 19.5

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