.12x+.32(4-x)=.2(4)

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Solution for .12x+.32(4-x)=.2(4) equation:


Simplifying
0.12x + 0.32(4 + -1x) = 0.2(4)
0.12x + (4 * 0.32 + -1x * 0.32) = 0.2(4)
0.12x + (1.28 + -0.32x) = 0.2(4)

Reorder the terms:
1.28 + 0.12x + -0.32x = 0.2(4)

Combine like terms: 0.12x + -0.32x = -0.2x
1.28 + -0.2x = 0.2(4)

Multiply 0.2 * 4
1.28 + -0.2x = 0.8

Solving
1.28 + -0.2x = 0.8

Solving for variable 'x'.

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

Add '-1.28' to each side of the equation.
1.28 + -1.28 + -0.2x = 0.8 + -1.28

Combine like terms: 1.28 + -1.28 = 0.00
0.00 + -0.2x = 0.8 + -1.28
-0.2x = 0.8 + -1.28

Combine like terms: 0.8 + -1.28 = -0.48
-0.2x = -0.48

Divide each side by '-0.2'.
x = 2.4

Simplifying
x = 2.4

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