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0.8x-4=57.8
We move all terms to the left:
0.8x-4-(57.8)=0
We add all the numbers together, and all the variables
0.8x-61.8=0
We move all terms containing x to the left, all other terms to the right
0.8x=61.8
x=61.8/0.8
x=77+0.2/0.8
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