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2y+15=47-45
We move all terms to the left:
2y+15-(47-45)=0
We add all the numbers together, and all the variables
2y+15-2=0
We add all the numbers together, and all the variables
2y+13=0
We move all terms containing y to the left, all other terms to the right
2y=-13
y=-13/2
y=-6+1/2
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