Solve for m (complex solution)
\left\{\begin{matrix}m=-\frac{x-4}{y}\text{, }&y\neq 0\\m\in \mathrm{C}\text{, }&x=4\text{ and }y=0\end{matrix}\right.
Solve for m
\left\{\begin{matrix}m=-\frac{x-4}{y}\text{, }&y\neq 0\\m\in \mathrm{R}\text{, }&x=4\text{ and }y=0\end{matrix}\right.
Solve for x
x=4-my
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my-4=-x
Subtract x from both sides. Anything subtracted from zero gives its negation.
my=-x+4
Add 4 to both sides.
ym=4-x
The equation is in standard form.
\frac{ym}{y}=\frac{4-x}{y}
Divide both sides by y.
m=\frac{4-x}{y}
Dividing by y undoes the multiplication by y.
my-4=-x
Subtract x from both sides. Anything subtracted from zero gives its negation.
my=-x+4
Add 4 to both sides.
ym=4-x
The equation is in standard form.
\frac{ym}{y}=\frac{4-x}{y}
Divide both sides by y.
m=\frac{4-x}{y}
Dividing by y undoes the multiplication by y.
x-4=-my
Subtract my from both sides. Anything subtracted from zero gives its negation.
x=-my+4
Add 4 to both sides.
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