Solve for y 8/1-y/2=5

Math
81-y2=5
Divide 8 by 1.
8-y2=5
Move all terms not containing y to the right side of the equation.
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Subtract 8 from both sides of the equation.
-y2=5-8
Subtract 8 from 5.
-y2=-3
-y2=-3
Multiply both sides of the equation by -2.
-2⋅(-y2)=-2⋅-3
Simplify both sides of the equation.
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Simplify -2⋅(-y2).
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Cancel the common factor of 2.
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Move the leading negative in -y2 into the numerator.
-2⋅-y2=-2⋅-3
Factor 2 out of -2.
2(-1)⋅-y2=-2⋅-3
Cancel the common factor.
2⋅-1⋅-y2=-2⋅-3
Rewrite the expression.
-1⋅(-y)=-2⋅-3
-1⋅(-y)=-2⋅-3
Multiply.
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Multiply -1 by -1.
1⋅y=-2⋅-3
Multiply y by 1.
y=-2⋅-3
y=-2⋅-3
y=-2⋅-3
Multiply -2 by -3.
y=6
y=6
Solve for y 8/1-y/2=5

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