12y-9=15y+9

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Solution for 12y-9=15y+9 equation:


12y-9=15y+9

We simplify the equation to the form, which is simple to understand 
12y-9=15y+9

We move all terms containing y to the left and all other terms to the right. 
+12y-15y=+9+9

We simplify left and right side of the equation. 
-3y=+18

We divide both sides of the equation by -3 to get y. 
y=-6

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