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3.5x+8=-9+3.5x

We move all terms to the left:

3.5x+8-(-9+3.5x)=0

We add all the numbers together, and all the variables

3.5x-(3.5x-9)+8=0

We get rid of parentheses

3.5x-3.5x+9+8=0

We add all the numbers together, and all the variables

17!=0

There is no solution for this equation

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