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2.8x+1.3=16.7
We move all terms to the left:
2.8x+1.3-(16.7)=0
We add all the numbers together, and all the variables
2.8x-15.4=0
We move all terms containing x to the left, all other terms to the right
2.8x=15.4
x=15.4/2.8
x=5+1/2
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