z+z+3=+1+9=3z-2z-9+7

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Solution for z+z+3=+1+9=3z-2z-9+7 equation: 



z+z+3=+1+9=3z-2z-9+7

We move all terms to the left:

z+z+3-(+1+9)=0

We add all the numbers together, and all the variables

z+z+3-10=0

We add all the numbers together, and all the variables

2z-7=0

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

2z=7

z=7/2

z=3+1/2

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