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yy+13y+40=0
We simplify the equation to the form, which is simple to understand
y+13y+40=0
We move all terms containing y to the left and all other terms to the right.
+1y+13y=0-40
We simplify left and right side of the equation.
+14y=-40
We divide both sides of the equation by 14 to get y.
y=-2.8571428571429
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