5z+4=7z-5

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Solution for 5z+4=7z-5 equation: 



5z+4=7z-5

We move all terms to the left:

5z+4-(7z-5)=0

We get rid of parentheses

5z-7z+5+4=0

We add all the numbers together, and all the variables

-2z+9=0

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

-2z=-9

z=-9/-2

z=4+1/2

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