0.8z+0.9=0.5z+3

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Solution for 0.8z+0.9=0.5z+3 equation: 



0.8z+0.9=0.5z+3

We move all terms to the left:

0.8z+0.9-(0.5z+3)=0

We get rid of parentheses

0.8z-0.5z-3+0.9=0

We add all the numbers together, and all the variables

0.3z-2.1=0

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

0.3z=2.1

z=2.1/0.3

z=7

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