-9-4d=3+8b first combine like terms so add 4b on both sides so its
-9=3+12b next subtract three on both sides
-12=12b next divide 12 on both sides
-1=b
Answer:
x=9
Step-by-step explanation:
I hope this helps you
16x+4=110+3x+11
13x=117
x=9
I didn’t learn this yet but maybe
Answer:
The American population was 20% of the British population.
Step-by-step explanation:
Let us call 
the american population, 
the British population before the migration, and 
the population that migrated from America to Britannia.
Now, the population that migrated was 20% of the american population:
,
and the same population increase the British population by 4%:
Combining equation (1) and (2) we get:
Thus, the American population was 20% of the British population.
