3.9+3.5=

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Solution for 3.9+3.5= equation:


3.9+3.5=0

We simplify the equation to the form, which is simple to understand 
3.9+3.5=0

We move all terms containing  to the left and all other terms to the right. 
0=0-3.9-3.5

We simplify left and right side of the equation. 
0=-7.4

0=-7.4

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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