Solve for z z/2+1=9

Math
z2+1=9
Move all terms not containing z to the right side of the equation.
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Subtract 1 from both sides of the equation.
z2=9-1
Subtract 1 from 9.
z2=8
z2=8
Multiply both sides of the equation by 2.
2⋅z2=2⋅8
Simplify both sides of the equation.
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Cancel the common factor of 2.
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Cancel the common factor.
2⋅z2=2⋅8
Rewrite the expression.
z=2⋅8
z=2⋅8
Multiply 2 by 8.
z=16
z=16
Solve for z z/2+1=9

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