4+0.8x=12+0.3x

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Solution for 4+0.8x=12+0.3x equation: 



4+0.8x=12+0.3x

We move all terms to the left:

4+0.8x-(12+0.3x)=0

We add all the numbers together, and all the variables

0.8x-(0.3x+12)+4=0

We get rid of parentheses

0.8x-0.3x-12+4=0

We add all the numbers together, and all the variables

0.5x-8=0

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

0.5x=8

x=8/0.5

x=16

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