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12.2z+19.4=-2.7+93.9
We move all terms to the left:
12.2z+19.4-(-2.7+93.9)=0
We add all the numbers together, and all the variables
12.2z+19.4-(91.2)=0
We add all the numbers together, and all the variables
12.2z-71.8=0
We move all terms containing z to the left, all other terms to the right
12.2z=71.8
z=71.8/12.2
z=5+3.8571428571429/4.3571428571429
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