3.5z-2.7z=-6.4

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Solution for 3.5z-2.7z=-6.4 equation: 



3.5z-2.7z=-6.4

We move all terms to the left:

3.5z-2.7z-(-6.4)=0

We add all the numbers together, and all the variables

0.8z+6.4=0

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

0.8z=-6.4

z=-6.4/0.8

z=-8

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