Hi,
Work:
Equation;

Factor out 2x from expression.

Use commutative property to reorder yc.

Hope this helps.
r3t40
Y-x =17
y = -x + 17
substitute this into the second equation
y = 4x + 2
-x + 17 = 4x + 2
0= 5x -15
15/5 = 5x/5
3 = x
7^6/7^2
(7*7*7*7*7*7)/(7*7)
the answer is b. 7^4
So it cooks for 2 hrs and 20 minutes......and it has to be done by 1 pm.
so from 1 p.m. - 2 hrs = 11 a.m........- 20 minutes = 10:40 a.m
start cooking at 10:40 a.m. and it will be done by 1 p.m
I don’t know and i understand that the other one didn’t do it but did you already try searching it?