3.9x+2.1=9.9

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Solution for 3.9x+2.1=9.9 equation: 


Simplifying
3.9x + 2.1 = 9.9

Reorder the terms:
2.1 + 3.9x = 9.9

Solving
2.1 + 3.9x = 9.9

Solving for variable 'x'.

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

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 3.9x = 9.9 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 3.9x = 9.9 + -2.1
3.9x = 9.9 + -2.1

Combine like terms: 9.9 + -2.1 = 7.8
3.9x = 7.8

Divide each side by '3.9'.
x = 2

Simplifying
x = 2

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