10z+9=2z+81

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Solution for 10z+9=2z+81 equation: 



10z+9=2z+81

We move all terms to the left:

10z+9-(2z+81)=0

We get rid of parentheses

10z-2z-81+9=0

We add all the numbers together, and all the variables

8z-72=0

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

8z=72

z=72/8

z=9

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