8-2z+12=-9z+21+8

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Solution for 8-2z+12=-9z+21+8 equation: 



8-2z+12=-9z+21+8

We move all terms to the left:

8-2z+12-(-9z+21+8)=0

We add all the numbers together, and all the variables

-2z-(-9z+29)+8+12=0

We add all the numbers together, and all the variables

-2z-(-9z+29)+20=0

We get rid of parentheses

-2z+9z-29+20=0

We add all the numbers together, and all the variables

7z-9=0

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

7z=9

z=9/7

z=1+2/7

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