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15iz-7i=-6
Subtract 6 from both sides. Anything subtracted from zero gives its negation.
15iz=-6+7i
Add 7i to both sides.
z=\frac{-6+7i}{15i}
Divide both sides by 15i.
z=\frac{\left(-6+7i\right)i}{15i^{2}}
Multiply both numerator and denominator of \frac{-6+7i}{15i} by imaginary unit i.
z=\frac{\left(-6+7i\right)i}{-15}
By definition, i^{2} is -1. Calculate the denominator.
z=\frac{-6i+7i^{2}}{-15}
Multiply -6+7i times i.
z=\frac{-6i+7\left(-1\right)}{-15}
By definition, i^{2} is -1.
z=\frac{-7-6i}{-15}
Do the multiplications in -6i+7\left(-1\right). Reorder the terms.
z=\frac{7}{15}+\frac{2}{5}i
Divide -7-6i by -15 to get \frac{7}{15}+\frac{2}{5}i.