3+2.5x=12

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Solution for 3+2.5x=12 equation: 



3+2.5x=12

We move all terms to the left:

3+2.5x-(12)=0

We add all the numbers together, and all the variables

2.5x-9=0

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

2.5x=9

x=9/2.5

x=3+1/1.6666666666667

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