-3.9=-2.8+1.4z

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Solution for -3.9=-2.8+1.4z equation: 



-3.9=-2.8+1.4z

We move all terms to the left:

-3.9-(-2.8+1.4z)=0

We add all the numbers together, and all the variables

-(1.4z-2.8)-3.9=0

We get rid of parentheses

-1.4z+2.8-3.9=0

We add all the numbers together, and all the variables

-1.4z-1.1=0

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

-1.4z=1.1

z=1.1/-1.4

z=-1/1.2727272727273

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