>>125560014 years,
Specifically, you make equations of D , compared to B,C and E
Then you determine the smallest which is B, because its the smallest
Then you use the main equation,
replacing x + 6= A, with B + 6 = A
Then you replace B with its equivalent compared to D,
then you replace this D with its equivalent of E
so you get :
D + 1 = A
E + 3 + 1 = A
E + 4 = A
Thus, A is 4 years Older than E
I'm french and this is literally basic 8th grade test Equations
