You should just multiply the first equation by 3 so you will have :
3 ( 3x+y= 7 ) ⇒ 9x + 3y = 21 so now you have the missing values and they are 3 and 21 :))
i hope this is helpful
have a nice day
Answer:
4 days
Step-by-step explanation:
79 + 30 = $109
109 x 4 = $436
Answer:
i belive there is no solution
Step-by-step explanation:
Answer:
the common factors are- 1, 2, 4.