4.x+3=12

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Solution for 4.x+3=12 equation: 



4.x+3=12

We move all terms to the left:

4.x+3-(12)=0

We add all the numbers together, and all the variables

4.x-9=0

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

4.x=9

x=9/4.

x=2+1/4.

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