7x-4=-0.4

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Solution for 7x-4=-0.4 equation: 



7x-4=-0.4

We move all terms to the left:

7x-4-(-0.4)=0

We add all the numbers together, and all the variables

7x-3.6=0

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

7x=3.6

x=3.6/7

x=2.25/4.375

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