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4.5h-2.1h=7.7-9.9
We move all terms to the left:
4.5h-2.1h-(7.7-9.9)=0
We add all the numbers together, and all the variables
4.5h-2.1h-(-2.2)=0
We add all the numbers together, and all the variables
2.4h+2.2=0
We move all terms containing h to the left, all other terms to the right
2.4h=-2.2
h=-2.2/2.4
h=-1/1.0909090909091
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