46 because if the age of the son was 8 then the father was 24 and if we add 8 (because that’s how many years passed) we get 16 and 32 which fit the criteria so if we take off 1 year on each (because only 7 years pass instead of 8) we can add them together and get 46
Answer:
7w - 3(4w + 8) = 11
Distribute.
-5w-24=11 Combine like terms on the left side.
-5w=11%2B24 Add 24 to both sides.
-5w=35 Combine like terms on the right side.
w=%2835%29%2F%28-5%29 Divide both sides by -5 to isolate w.
w=-7 Reduce.
Answer:

Step-by-step explanation:
The principal of the amount P is deposited in an account that earns simple interest.
The interest that the account earns is r annual interest rate expressed as a decimal.
The principal P is invested for t years.
Therefore, the matured amount A will be given by
Hence, this is the formula that can calculate the A if P, r and t are known. (Answer)