Respuesta :

-3(m+6)-(11+9m)

distribute

-3m -3*6 -11-9m

-3m -18 -11-9m

-12m -29

First use the distributive property to multiply the first set of parentheses with the -3 and the second parentheses flip the signs because its negative

(-3m-18)+(-11-9m)

Then remove parentheses because it is addition and combine like terms

-12m - 29