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2z/9-6=-7
We move all terms to the left:
2z/9-6-(-7)=0
We add all the numbers together, and all the variables
2z/9+1=0
We multiply all the terms by the denominator
2z+1*9=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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