10x-9x-.5=-.9

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Solution for 10x-9x-.5=-.9 equation:


Simplifying
10x + -9x + -0.5 = -0.9

Reorder the terms:
-0.5 + 10x + -9x = -0.9

Combine like terms: 10x + -9x = 1x
-0.5 + 1x = -0.9

Solving
-0.5 + 1x = -0.9

Solving for variable 'x'.

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

Add '0.5' to each side of the equation.
-0.5 + 0.5 + 1x = -0.9 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 1x = -0.9 + 0.5
1x = -0.9 + 0.5

Combine like terms: -0.9 + 0.5 = -0.4
1x = -0.4

Divide each side by '1'.
x = -0.4

Simplifying
x = -0.4

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