7x+4.2=-8

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Solution for 7x+4.2=-8 equation: 



7x+4.2=-8

We move all terms to the left:

7x+4.2-(-8)=0

We add all the numbers together, and all the variables

7x+12.2=0

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

7x=-12.2

x=-12.2/7

x=-1+4.33333333333/5.83333333333

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