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y=1
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y≔1
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y=\frac{1}{2}+\frac{1}{2}
Multiply -\frac{1}{2} and -1 to get \frac{1}{2}.
y=\frac{1+1}{2}
Since \frac{1}{2} and \frac{1}{2} have the same denominator, add them by adding their numerators.
y=\frac{2}{2}
Add 1 and 1 to get 2.
y=1
Divide 2 by 2 to get 1.
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