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9y-7=23-2y
We move all terms to the left:
9y-7-(23-2y)=0
We add all the numbers together, and all the variables
9y-(-2y+23)-7=0
We get rid of parentheses
9y+2y-23-7=0
We add all the numbers together, and all the variables
11y-30=0
We move all terms containing y to the left, all other terms to the right
11y=30
y=30/11
y=2+8/11
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