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2z-1=i\left(z+i\right)
Variable z cannot be equal to -i since division by zero is not defined. Multiply both sides of the equation by z+i.
2z-1=iz-1
Use the distributive property to multiply i by z+i.
2z-1-iz=-1
Subtract iz from both sides.
\left(2-i\right)z-1=-1
Combine 2z and -iz to get \left(2-i\right)z.
\left(2-i\right)z=-1+1
Add 1 to both sides.
\left(2-i\right)z=0
Add -1 and 1 to get 0.
z=0
Divide both sides by 2-i. Zero divided by any non-zero number gives zero.