3x+2.5=12x-5.5x+9

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Solution for 3x+2.5=12x-5.5x+9 equation: 



3x+2.5=12x-5.5x+9

We move all terms to the left:

3x+2.5-(12x-5.5x+9)=0

We add all the numbers together, and all the variables

3x-(6.5x+9)+2.5=0

We get rid of parentheses

3x-6.5x-9+2.5=0

We add all the numbers together, and all the variables

-3.5x-6.5=0

We move all terms containing x to the left, all other terms to the right

-3.5x=6.5

x=6.5/-3.5

x=-1+1/1.1666666666667

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