8.1=.9x

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Solution for 8.1=.9x equation:


Simplifying
8.1 = 0.9x

Solving
8.1 = 0.9x

Solving for variable 'x'.

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

Add '-0.9x' to each side of the equation.
8.1 + -0.9x = 0.9x + -0.9x

Combine like terms: 0.9x + -0.9x = 0.0
8.1 + -0.9x = 0.0

Add '-8.1' to each side of the equation.
8.1 + -8.1 + -0.9x = 0.0 + -8.1

Combine like terms: 8.1 + -8.1 = 0.0
0.0 + -0.9x = 0.0 + -8.1
-0.9x = 0.0 + -8.1

Combine like terms: 0.0 + -8.1 = -8.1
-0.9x = -8.1

Divide each side by '-0.9'.
x = 9

Simplifying
x = 9

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