Respuesta :
Hello,
[tex] \frac{5}{4 - m} = \frac{ - 3}{2 + m} [/tex]
[tex]5(2 + m) = - 3(4 - m)[/tex]
[tex]10 + 5m = - 12 + 3m[/tex]
[tex]5m - 3m = - 12 - 10[/tex]
[tex]2m = - 22[/tex]
[tex]m = \frac{ - 22}{2} [/tex]
[tex]m = - 11[/tex]
→ Answer B
Variable m cannot be equal to any of the values −2,4 as division by zero is undefined. Multiply both sides of the equation by (m − 4)(m + 2), the lowest common denominator of 4−m,m + 2.
- −(2 + m) ×5 = (m −4 )( −3 )
To find the opposite of 2+m, find the opposite of each term.
- (−2 −m) ×5 = ( m−4 )( −3 )
Use the distributive property to multiply −2−m by 5.
- −10 −5m = ( m−4 )( −3 )
Use the distributive property to multiply m−4 by −3.
- −10 −5m =−3m + 12
Add 3m to both sides.
- −10 − 5m + 3m =12
Combine −5m and 3m to get −2m.
- −10 −2m = 12
Add 10 to both sides.
- −2m = 12 + 10
Add 12 and 10 to get 2.
- −2m = 22
Divide both sides by −2.
- m = 22 / -2
Divide 22 by −2 to get −11.
- m = −11
Therefore, the correct option is "B".