.45X+.05(6-X)=.1(75)

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Solution for .45X+.05(6-X)=.1(75) equation:


Simplifying
0.45X + 0.05(6 + -1X) = 0.1(75)
0.45X + (6 * 0.05 + -1X * 0.05) = 0.1(75)
0.45X + (0.3 + -0.05X) = 0.1(75)

Reorder the terms:
0.3 + 0.45X + -0.05X = 0.1(75)

Combine like terms: 0.45X + -0.05X = 0.4X
0.3 + 0.4X = 0.1(75)

Multiply 0.1 * 75
0.3 + 0.4X = 7.5

Solving
0.3 + 0.4X = 7.5

Solving for variable 'X'.

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

Add '-0.3' to each side of the equation.
0.3 + -0.3 + 0.4X = 7.5 + -0.3

Combine like terms: 0.3 + -0.3 = 0.0
0.0 + 0.4X = 7.5 + -0.3
0.4X = 7.5 + -0.3

Combine like terms: 7.5 + -0.3 = 7.2
0.4X = 7.2

Divide each side by '0.4'.
X = 18

Simplifying
X = 18

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