Step-by-step explanation:
2x+3y=12
2x- y =4
-------------------------------------
subtraction. 4y=8
y=2
putting the value of y=2
2x-y=4
2x-2=4
2x=6
x=3
(3,2)
option A
Answer:
64=2✖️2✖️2✖️2✖️2✖️2
80=2✖️2✖️2✖️2✖️2✖️5
Common factors=2✖️2✖️2✖️2
As HCF= Product of common factors
HCF =2✖️2✖️2✖️2
HCF=16
Step-by-step explanation:
I hope this will help you:)
Answer:
126
Step-by-step explanation:
35/5 = 6.
6 is the number in 1 day
6x21=126
126 is the number in 21 days
Hope that helps
Answer:
the correct answer would be I think 5x-15y=1
Step-by-step explanation:
I have already learned that

means to say there is some

such that

. Similarly,

is equivalent to saying there exists
![k_2[/te]x such that [tex]n=dk_2](https://tex.z-dn.net/?f=k_2%5B%2Fte%5Dx%20such%20that%20%5Btex%5Dn%3Ddk_2)
.
Now,

, i.e. there is some

such that

is a multiple of

, i.e.

.