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2.7+2y=6.9
We move all terms to the left:
2.7+2y-(6.9)=0
We add all the numbers together, and all the variables
2y-4.2=0
We move all terms containing y to the left, all other terms to the right
2y=4.2
y=4.2/2
y=2+0.2/2
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