Solve for z: -10z + (z-1)21.875 - [(z-1)5*((2-1)/2)] = 0

[Solidsam]

how do i find z in this problem

-10z+(z-1)21.875-[(z-1)5*((2-1)/2)]=0

i get a quadratic equation but can't seem to get the right answer

z=2.094

 

[Hurkyl]

Eh? Looks like a linear equation to me.

Anyways, we can't see what you're doing wrong if you don't show your work...