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0.5x+4x=4.5
We move all terms to the left:
0.5x+4x-(4.5)=0
We add all the numbers together, and all the variables
4.5x-4.5=0
We move all terms containing x to the left, all other terms to the right
4.5x=4.5
x=4.5/4.5
x=1
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