Answer:
2Na + F2 ---> 2NaF
Step-by-step explanation:
Solve for n
Simply both sides 11(n-1)+35=3n
Distribute (11)(n) + (11)(-1) + 35 = 3n
11n+-11+35=3n
Combine like terms (11n)+(-11+35)=3n
11n + 24 =3n
Subtract 3n from both sides
11n+24-3n=3n-3n
8n + 24 = 0
Subtract 24 from both sides
8n+24-24=0-24
8n = -24
Divide both sides by 8
8n = -24
8 8
n = -3
Answer:
B
Step-by-step explanation:
CDE and CBA are similar triangles
Ratio = CE/CA = 24/48 = 1/2
CD/CB = 1/2
18/(24+x) = 1/2
24+x = 36
x = 12
DE/BA = 1/2
y/24 = 1/2
y = 12