Respuesta :

I think you mean the value of 'm' not 'b' as there is no 'b' variable given in the equation.

Assuming you meant 'm' then,

5 - 10m = 3m

   + 10m    + 10m

5 = 13m

/13   /13

0.384615385 = m

Answer:

It is 10. I know you are trying to apply it with the quadratic formula.

Step-by-step explanation: