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-2.5+3y=-9
We simplify the equation to the form, which is simple to understand
-2.5+3y=-9
We move all terms containing y to the left and all other terms to the right.
+3y=-9+2.5
We simplify left and right side of the equation.
+3y=-6.5
We divide both sides of the equation by 3 to get y.
y=-2.16666666667
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