0.50x+0.05(18-x)=0.10(-9)

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Solution for 0.50x+0.05(18-x)=0.10(-9) equation: 


Simplifying
0.50x + 0.05(18 + -1x) = 0.10(-9)
0.50x + (18 * 0.05 + -1x * 0.05) = 0.10(-9)
0.50x + (0.9 + -0.05x) = 0.10(-9)

Reorder the terms:
0.9 + 0.50x + -0.05x = 0.10(-9)

Combine like terms: 0.50x + -0.05x = 0.45x
0.9 + 0.45x = 0.10(-9)

Multiply 0.10 * -9
0.9 + 0.45x = -0.9

Solving
0.9 + 0.45x = -0.9

Solving for variable 'x'.

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

Add '-0.9' to each side of the equation.
0.9 + -0.9 + 0.45x = -0.9 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + 0.45x = -0.9 + -0.9
0.45x = -0.9 + -0.9

Combine like terms: -0.9 + -0.9 = -1.8
0.45x = -1.8

Divide each side by '0.45'.
x = -4

Simplifying
x = -4

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