Solve for m (complex solution)
\left\{\begin{matrix}m=-\frac{12x-4y+b-16}{3\left(4x-5\right)}\text{, }&x\neq \frac{5}{4}\\m\in \mathrm{C}\text{, }&y=\frac{b-1}{4}\text{ and }x=\frac{5}{4}\end{matrix}\right.
Solve for b
b=16+15m+4y-12x-12mx
Solve for m
\left\{\begin{matrix}m=-\frac{12x-4y+b-16}{3\left(4x-5\right)}\text{, }&x\neq \frac{5}{4}\\m\in \mathrm{R}\text{, }&y=\frac{b-1}{4}\text{ and }x=\frac{5}{4}\end{matrix}\right.
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b+12mx-15m+12x-15=4y+1
Swap sides so that all variable terms are on the left hand side.
12mx-15m+12x-15=4y+1-b
Subtract b from both sides.
12mx-15m-15=4y+1-b-12x
Subtract 12x from both sides.
12mx-15m=4y+1-b-12x+15
Add 15 to both sides.
12mx-15m=4y+16-b-12x
Add 1 and 15 to get 16.
\left(12x-15\right)m=4y+16-b-12x
Combine all terms containing m.
\left(12x-15\right)m=16-b+4y-12x
The equation is in standard form.
\frac{\left(12x-15\right)m}{12x-15}=\frac{16-b+4y-12x}{12x-15}
Divide both sides by 12x-15.
m=\frac{16-b+4y-12x}{12x-15}
Dividing by 12x-15 undoes the multiplication by 12x-15.
m=\frac{16-b+4y-12x}{3\left(4x-5\right)}
Divide 4y+16-b-12x by 12x-15.
b+12mx-15m+12x-15=4y+1
Swap sides so that all variable terms are on the left hand side.
b-15m+12x-15=4y+1-12mx
Subtract 12mx from both sides.
b+12x-15=4y+1-12mx+15m
Add 15m to both sides.
b-15=4y+1-12mx+15m-12x
Subtract 12x from both sides.
b=4y+1-12mx+15m-12x+15
Add 15 to both sides.
b=4y+16-12mx+15m-12x
Add 1 and 15 to get 16.
b+12mx-15m+12x-15=4y+1
Swap sides so that all variable terms are on the left hand side.
12mx-15m+12x-15=4y+1-b
Subtract b from both sides.
12mx-15m-15=4y+1-b-12x
Subtract 12x from both sides.
12mx-15m=4y+1-b-12x+15
Add 15 to both sides.
12mx-15m=4y+16-b-12x
Add 1 and 15 to get 16.
\left(12x-15\right)m=4y+16-b-12x
Combine all terms containing m.
\left(12x-15\right)m=16-b+4y-12x
The equation is in standard form.
\frac{\left(12x-15\right)m}{12x-15}=\frac{16-b+4y-12x}{12x-15}
Divide both sides by 12x-15.
m=\frac{16-b+4y-12x}{12x-15}
Dividing by 12x-15 undoes the multiplication by 12x-15.
m=\frac{16-b+4y-12x}{3\left(4x-5\right)}
Divide 4y+16-b-12x by 12x-15.
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