20+13z=2z-20+9z

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Solution for 20+13z=2z-20+9z equation: 



20+13z=2z-20+9z

We move all terms to the left:

20+13z-(2z-20+9z)=0

We add all the numbers together, and all the variables

13z-(11z-20)+20=0

We get rid of parentheses

13z-11z+20+20=0

We add all the numbers together, and all the variables

2z+40=0

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

2z=-40

z=-40/2

z=-20

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