.4x+.16(20-x)=20(.22)

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Solution for .4x+.16(20-x)=20(.22) equation:


Simplifying
0.4x + 0.16(20 + -1x) = 20(0.22)
0.4x + (20 * 0.16 + -1x * 0.16) = 20(0.22)
0.4x + (3.2 + -0.16x) = 20(0.22)

Reorder the terms:
3.2 + 0.4x + -0.16x = 20(0.22)

Combine like terms: 0.4x + -0.16x = 0.24x
3.2 + 0.24x = 20(0.22)

Multiply 20 * 0.22
3.2 + 0.24x = 4.4

Solving
3.2 + 0.24x = 4.4

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 = 4.4 + -3.2

Combine like terms: 3.2 + -3.2 = 0.0
0.0 + 0.24x = 4.4 + -3.2
0.24x = 4.4 + -3.2

Combine like terms: 4.4 + -3.2 = 1.2
0.24x = 1.2

Divide each side by '0.24'.
x = 5

Simplifying
x = 5

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