4=-2/5x

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Solution for 4=-2/5x equation: 



4=-2/5x

We move all terms to the left:

4-(-2/5x)=0



Domain of the equation: 5x)!=0

x!=0/1

x!=0

x∈R



We get rid of parentheses

2/5x+4=0

We multiply all the terms by the denominator


4*5x+2=0

Wy multiply elements

20x+2=0

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

20x=-2

x=-2/20

x=-1/10

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