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y/3-2.1=-6.9
We move all terms to the left:
y/3-2.1-(-6.9)=0
We add all the numbers together, and all the variables
y/3+4.8=0
We multiply all the terms by the denominator
y+(4.8)*3=0
We add all the numbers together, and all the variables
y+14.4=0
We move all terms containing y to the left, all other terms to the right
y=-14.4
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