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z+7=2z+-1/2
We move all terms to the left:
z+7-(2z+-1/2)=0
We add all the numbers together, and all the variables
z-(+2z-1/2)+7=0
We get rid of parentheses
z-2z+7+1/2=0
We multiply all the terms by the denominator
z*2-2z*2+1+7*2=0
We add all the numbers together, and all the variables
z*2-2z*2+15=0
Wy multiply elements
2z-4z+15=0
We add all the numbers together, and all the variables
-2z+15=0
We move all terms containing z to the left, all other terms to the right
-2z=-15
z=-15/-2
z=7+1/2
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