20-7z+15=-4z-19

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Solution for 20-7z+15=-4z-19 equation: 



20-7z+15=-4z-19

We move all terms to the left:

20-7z+15-(-4z-19)=0

We add all the numbers together, and all the variables

-7z-(-4z-19)+35=0

We get rid of parentheses

-7z+4z+19+35=0

We add all the numbers together, and all the variables

-3z+54=0

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

-3z=-54

z=-54/-3

z=+18

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