.4x+.16(20-x)=20(.4)

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Solution for .4x+.16(20-x)=20(.4) equation:


Simplifying
0.4x + 0.16(20 + -1x) = 20(0.4)
0.4x + (20 * 0.16 + -1x * 0.16) = 20(0.4)
0.4x + (3.2 + -0.16x) = 20(0.4)

Reorder the terms:
3.2 + 0.4x + -0.16x = 20(0.4)

Combine like terms: 0.4x + -0.16x = 0.24x
3.2 + 0.24x = 20(0.4)

Multiply 20 * 0.4
3.2 + 0.24x = 8

Solving
3.2 + 0.24x = 8

Solving for variable 'x'.

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

Add '-3.2' to each side of the equation.
3.2 + -3.2 + 0.24x = 8 + -3.2

Combine like terms: 3.2 + -3.2 = 0.0
0.0 + 0.24x = 8 + -3.2
0.24x = 8 + -3.2

Combine like terms: 8 + -3.2 = 4.8
0.24x = 4.8

Divide each side by '0.24'.
x = 20

Simplifying
x = 20

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