6+0.4x=12

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Solution for 6+0.4x=12 equation: 



6+0.4x=12

We move all terms to the left:

6+0.4x-(12)=0

We add all the numbers together, and all the variables

0.4x-6=0

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

0.4x=6

x=6/0.4

x=15

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