.90x+.5(18-x)=.10(-144)

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Solution for .90x+.5(18-x)=.10(-144) equation:


Simplifying
0.90x + 0.5(18 + -1x) = 0.10(-144)
0.90x + (18 * 0.5 + -1x * 0.5) = 0.10(-144)
0.90x + (9 + -0.5x) = 0.10(-144)

Reorder the terms:
9 + 0.90x + -0.5x = 0.10(-144)

Combine like terms: 0.90x + -0.5x = 0.4x
9 + 0.4x = 0.10(-144)

Multiply 0.10 * -144
9 + 0.4x = -14.4

Solving
9 + 0.4x = -14.4

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 0.4x = -14.4 + -9

Combine like terms: 9 + -9 = 0
0 + 0.4x = -14.4 + -9
0.4x = -14.4 + -9

Combine like terms: -14.4 + -9 = -23.4
0.4x = -23.4

Divide each side by '0.4'.
x = -58.5

Simplifying
x = -58.5

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