4.5-3.9x=20.1

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Solution for 4.5-3.9x=20.1 equation: 


Simplifying
4.5 + -3.9x = 20.1

Solving
4.5 + -3.9x = 20.1

Solving for variable 'x'.

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

Add '-4.5' to each side of the equation.
4.5 + -4.5 + -3.9x = 20.1 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + -3.9x = 20.1 + -4.5
-3.9x = 20.1 + -4.5

Combine like terms: 20.1 + -4.5 = 15.6
-3.9x = 15.6

Divide each side by '-3.9'.
x = -4

Simplifying
x = -4

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