20-19z+20=-20-4z

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



20-19z+20=-20-4z

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-19z-(-4z-20)+40=0

We get rid of parentheses

-19z+4z+20+40=0

We add all the numbers together, and all the variables

-15z+60=0

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

-15z=-60

z=-60/-15

z=+4

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