Respuesta :
-3(m - 2n - 4) = -9
m - 2n - 4 = -9/-3
m - 2n - 4 = 3
m - 2n = 7
Answer:
m - 2n = 7
Step-by-step explanation:
-3(m -2n - 4) = -9
Divide both sides by (-3)
m - 2n - 4 = (-9)/(-3)
m - 2n - 4 = 3
Add 4 to both sides.
m - 2n - 4 + 4 = 3 + 4
m - 2n = 7