0.85X+0.05(8-X)=0.10(20)

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Solution for 0.85X+0.05(8-X)=0.10(20) equation: 


Simplifying
0.85X + 0.05(8 + -1X) = 0.10(20)
0.85X + (8 * 0.05 + -1X * 0.05) = 0.10(20)
0.85X + (0.4 + -0.05X) = 0.10(20)

Reorder the terms:
0.4 + 0.85X + -0.05X = 0.10(20)

Combine like terms: 0.85X + -0.05X = 0.8X
0.4 + 0.8X = 0.10(20)

Multiply 0.10 * 20
0.4 + 0.8X = 2

Solving
0.4 + 0.8X = 2

Solving for variable 'X'.

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

Add '-0.4' to each side of the equation.
0.4 + -0.4 + 0.8X = 2 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + 0.8X = 2 + -0.4
0.8X = 2 + -0.4

Combine like terms: 2 + -0.4 = 1.6
0.8X = 1.6

Divide each side by '0.8'.
X = 2

Simplifying
X = 2

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