Answer:

Step-by-step explanation:


We are going to do a replacement of x for a second equation
So instead

in the place of x we are putting 12-y from the first equation, so

To leave the brackets we need to do multiplication

Which is


How to determine x? From the first equation:
If the x +y = 12 then the x = 12-y so x = 12-7 = 5
We should write solution as a pair:

Answer:
thats facts bro
Step-by-step explanation:
thats facts
Answer:
x <u><</u> 4 or 4 <u>-</u> x
Step-by-step explanation:
Hope I helped please give me the brailiest if you dont mind :)
Please and thank you :)
Answer:the percent change in the puppy's weight= 275%
Step-by-step explanation:
Jillian's puppy Weight at 2 months =16 pounds
Jillian's puppy Weight at 8 months =60 pounds
percent change in the puppy's weight= change in weight / Old weight x 100
(60 pounds -16pounds ) / 16 x 100
44/16 x 100 = 275%