7.1+x=3.9

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Solution for 7.1+x=3.9 equation: 


Simplifying
7.1 + x = 3.9

Solving
7.1 + x = 3.9

Solving for variable 'x'.

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

Add '-7.1' to each side of the equation.
7.1 + -7.1 + x = 3.9 + -7.1

Combine like terms: 7.1 + -7.1 = 0.0
0.0 + x = 3.9 + -7.1
x = 3.9 + -7.1

Combine like terms: 3.9 + -7.1 = -3.2
x = -3.2

Simplifying
x = -3.2

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