4.2/z=-8.4

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Solution for 4.2/z=-8.4 equation: 



4.2/z=-8.4

We move all terms to the left:

4.2/z-(-8.4)=0



Domain of the equation: z!=0

z∈R



We add all the numbers together, and all the variables

4.2/z+8.4=0

We multiply all the terms by the denominator


(8.4)*z+4.2=0

We multiply parentheses

8.4z+4.2=0

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

8.4z=-4.2

z=-4.2/8.4

z=-1/2

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