3-12+9y=18

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Solution for 3-12+9y=18 equation:



3-12+9y=18
We move all terms to the left:
3-12+9y-(18)=0
We add all the numbers together, and all the variables
9y-27=0
We move all terms containing y to the left, all other terms to the right
9y=27
y=27/9
y=3

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