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z/2+4=-71
We move all terms to the left:
z/2+4-(-71)=0
We add all the numbers together, and all the variables
z/2+75=0
We multiply all the terms by the denominator
z+75*2=0
We add all the numbers together, and all the variables
z+150=0
We move all terms containing z to the left, all other terms to the right
z=-150
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