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5y+8y=6*3.1415
We move all terms to the left:
5y+8y-(6*3.1415)=0
We add all the numbers together, and all the variables
5y+8y-(18.849)=0
We add all the numbers together, and all the variables
13y-18.849=0
We move all terms containing y to the left, all other terms to the right
13y=18.849
y=18.849/13
y=1+3.1633315305571/7.0308274743104
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