Solve for b (complex solution)
\left\{\begin{matrix}\\b=-9x\text{, }&\text{unconditionally}\\b\in \mathrm{C}\text{, }&x=0\end{matrix}\right.
Solve for b
\left\{\begin{matrix}\\b=-9x\text{, }&\text{unconditionally}\\b\in \mathrm{R}\text{, }&x=0\end{matrix}\right.
Solve for x
x=-\frac{b}{9}
x=0
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bx=-9x^{2}
Subtract 9x^{2} from both sides. Anything subtracted from zero gives its negation.
xb=-9x^{2}
The equation is in standard form.
\frac{xb}{x}=-\frac{9x^{2}}{x}
Divide both sides by x.
b=-\frac{9x^{2}}{x}
Dividing by x undoes the multiplication by x.
b=-9x
Divide -9x^{2} by x.
bx=-9x^{2}
Subtract 9x^{2} from both sides. Anything subtracted from zero gives its negation.
xb=-9x^{2}
The equation is in standard form.
\frac{xb}{x}=-\frac{9x^{2}}{x}
Divide both sides by x.
b=-\frac{9x^{2}}{x}
Dividing by x undoes the multiplication by x.
b=-9x
Divide -9x^{2} by x.
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