0.9x-0.8=3.9

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Solution for 0.9x-0.8=3.9 equation:


Simplifying
0.9x + -0.8 = 3.9

Reorder the terms:
-0.8 + 0.9x = 3.9

Solving
-0.8 + 0.9x = 3.9

Solving for variable 'x'.

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

Add '0.8' to each side of the equation.
-0.8 + 0.8 + 0.9x = 3.9 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + 0.9x = 3.9 + 0.8
0.9x = 3.9 + 0.8

Combine like terms: 3.9 + 0.8 = 4.7
0.9x = 4.7

Divide each side by '0.9'.
x = 5.222222222

Simplifying
x = 5.222222222

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