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8x/4.5=40
We move all terms to the left:
8x/4.5-(40)=0
We multiply all the terms by the denominator
8x-40*4.5=0
We add all the numbers together, and all the variables
8x-180=0
We move all terms containing x to the left, all other terms to the right
8x=180
x=180/8
x=22+1/2
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