.15X+.05(12-X)=.10(-2)

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Solution for .15X+.05(12-X)=.10(-2) equation:


Simplifying
0.15X + 0.05(12 + -1X) = 0.10(-2)
0.15X + (12 * 0.05 + -1X * 0.05) = 0.10(-2)
0.15X + (0.6 + -0.05X) = 0.10(-2)

Reorder the terms:
0.6 + 0.15X + -0.05X = 0.10(-2)

Combine like terms: 0.15X + -0.05X = 0.1X
0.6 + 0.1X = 0.10(-2)

Multiply 0.10 * -2
0.6 + 0.1X = -0.2

Solving
0.6 + 0.1X = -0.2

Solving for variable 'X'.

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

Add '-0.6' to each side of the equation.
0.6 + -0.6 + 0.1X = -0.2 + -0.6

Combine like terms: 0.6 + -0.6 = 0.0
0.0 + 0.1X = -0.2 + -0.6
0.1X = -0.2 + -0.6

Combine like terms: -0.2 + -0.6 = -0.8
0.1X = -0.8

Divide each side by '0.1'.
X = -8

Simplifying
X = -8

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