Respuesta :

Answer: m= [tex]\frac{0}{x-21}[/tex]

Step-by-step explanation: Step 1: Flip the equation.

mx−21m=0

Step 2: Factor out variable m.

m(x−21)=0

Step 3: Divide both sides by x-21.

[tex]\frac{m(x-21)}{x-21}[/tex] = [tex]\frac{0}{x-21}[/tex]

So Final Answer: [tex]\frac{0}{x-21}[/tex]

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