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4.5 + 0.5y=0
We simplify the equation to the form, which is simple to understand
4.5 + 0.5y=0
We move all terms containing y to the left and all other terms to the right.
+ 0.5y=0-4.5
We simplify left and right side of the equation.
+ 0.5y=-4.5
We divide both sides of the equation by 0.5 to get y.
y=-9
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