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.25-20h=-45
We move all terms to the left:
.25-20h-(-45)=0
We add all the numbers together, and all the variables
-20h+45.25=0
We move all terms containing h to the left, all other terms to the right
-20h=-45.25
h=-45.25/-20
h=2+1/3.8095238095238
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