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6.9y=2.8
We move all terms to the left:
6.9y-(2.8)=0
We add all the numbers together, and all the variables
6.9y-2.8=0
We move all terms containing y to the left, all other terms to the right
6.9y=2.8
y=2.8/6.9
y=1/2.4642857142857
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