7.8=x+3.4

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Solution for 7.8=x+3.4 equation: 



7.8=x+3.4

We move all terms to the left:

7.8-(x+3.4)=0

We get rid of parentheses

-x-3.4+7.8=0

We add all the numbers together, and all the variables

-1x+4.4=0

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

-x=-4.4

x=-4.4/-1

x=4+0.4/1

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