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2y-9-13=0
We simplify the equation to the form, which is simple to understand
2y-9-13=0
We move all terms containing y to the left and all other terms to the right.
+2y=0+9+13
We simplify left and right side of the equation.
+2y=+22
We divide both sides of the equation by 2 to get y.
y=11
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