Respuesta :
answer:
p = 99 - y OR 99 - y = p
explanation:
day 1 = 37
day 2 = 37
day 3 = 37
day 4 = Y
day 5 = P
In the first 3 days dylan read 111 pages (37 x 3) that means he would of had to have to read 99 pages on days 4 & 5 altogether.
substitute what we know :-
y + p = 99
switch the equation round to show that we are trying to find the number of pages on day 5 :-
p = 99 - y
p = 99 - y OR 99 - y = p
explanation:
day 1 = 37
day 2 = 37
day 3 = 37
day 4 = Y
day 5 = P
In the first 3 days dylan read 111 pages (37 x 3) that means he would of had to have to read 99 pages on days 4 & 5 altogether.
substitute what we know :-
y + p = 99
switch the equation round to show that we are trying to find the number of pages on day 5 :-
p = 99 - y
