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8z/4-3=-7
We move all terms to the left:
8z/4-3-(-7)=0
We add all the numbers together, and all the variables
8z/4+4=0
We multiply all the terms by the denominator
8z+4*4=0
We add all the numbers together, and all the variables
8z+16=0
We move all terms containing z to the left, all other terms to the right
8z=-16
z=-16/8
z=-2
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