-4x-8.1=3.9

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Solution for -4x-8.1=3.9 equation:


Simplifying
-4x + -8.1 = 3.9

Reorder the terms:
-8.1 + -4x = 3.9

Solving
-8.1 + -4x = 3.9

Solving for variable 'x'.

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

Add '8.1' to each side of the equation.
-8.1 + 8.1 + -4x = 3.9 + 8.1

Combine like terms: -8.1 + 8.1 = 0.0
0.0 + -4x = 3.9 + 8.1
-4x = 3.9 + 8.1

Combine like terms: 3.9 + 8.1 = 12
-4x = 12

Divide each side by '-4'.
x = -3

Simplifying
x = -3

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