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3.6x+1.2x-5.3=42.7
We move all terms to the left:
3.6x+1.2x-5.3-(42.7)=0
We add all the numbers together, and all the variables
4.8x-48=0
We move all terms containing x to the left, all other terms to the right
4.8x=48
x=48/4.8
x=10
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