\[y=mx+b\]
Solving for m. Want to solve for x or solve for b instead?
1
Subtract bb from both sides.
y−b=mxy-b=mx

2
Divide both sides by xx.
y−bx=m\frac{y-b}{x}=m

3
Switch sides.
m=y−bxm=\frac{y-b}{x}

Done
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