Class 9 Maths | Chapter 1 - Pairs of Equations / Two Digit Number | Xylem Class 9

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[shibuk]

1st digit = x
2nd digit = y
Two digit number = 10x+y
Interchanging the digits
First digit = y
Second digit = x
The number = 10y+x
x+y=9 — (1)
10x+y+27=10y+x
= 27=10y+x–10x–y
=27=9y–9x
=9y–9x=27
=9÷(9y–9x=27)
=1y–1x=3
=y–x=3— (2)

x+y=9— (1)
y+x=9— (1)
+
y–x=3— (2)

2y+0=12
2y = 12
y = 12÷2
y = 6

x+y = 9 — (1)
x+6=9
x=9-6=3

10x+y=(10×3)+6
=30+6
= 36
10y+x=63
[36+27=63]

[mjcoxpo]

Mid -term examin vendi kanunnavar undo 😁😁😁👍👍👍👍👍👍

[RASMYKR]

1st digit =x
2nd digit=y
two digit number=10x+y

10x+y+27-10y+x
9y-9x=27

9 9 9
y-x=3---->(2)

y+x=9--->(1)


2y =12
y=12
----
2
y =6

y+x=9
6+x=9
x=9-6
x=3

therefore numbers =36 and 63

[AngelJaison-xw]

x+y=9
10x+y+27=10y+x
10x+y-10y+x=27
9y-9x=27
y-x=3

y+x=9
y-x=3

2y-0=6
6/2=3
x+3=9
x=9-3=6

10×6+3=63
Interchanging=10y+x=36

[AnudarshkSundaresan]

x+y=9
10x+0
y+27-10y+x
27=10y+x-10x+y
9y-9x=27
9y/9, 9x/9,27/9
y-x=3
y+x=9
y-x=3
2y=12
y=12/2=6

y+x=9
6=x=9
x=9-6=3
east or west xylem is best

[ShajahanShowkathali]

1st digit= x
2 nd digit= y
10 x+y
X+Y= 9 ___ equation 1

Interchanging the digits

1 st digit = y
2 nd digit= x
10 y+ x

10x+y+27= 10y+ x
27= 10y+ x- 10 x -y
9y-9x = 27 divided by 9
= Y - x = 3
Y + X = 9 ____ equation 1
Y - X = 3 ____ equation 2
Ans: 2 y. = 12
Y = 12 divided by 2 = 6
Y = 6
Y + X = 9
6 + X = 9

X= 9 - 6 = 3

10 X+Y= ( 10× 3) + 6
= 36
10 Y - X = 63
+ 27

[Jungru_mon_officials]

Ee video cheythatil thankyou so much ❤❤ enikk clear aakatha portion aayirunnu

[naseemanoufal-zulu]

Ninja batchil keraathavar etrayum pettann keeruu❤️‍🔥❤️‍🔥💪🥷🥷🥷🥷🥷🥷

[safeeraummer]

sir xylem class kelkkunath kond enikk nalla mattam und THANK YOU XYLEM💚😎

[falcon_._]

X+y=9
10x+y+27=10y+x
27=10y+x-10x+y
9y-9x=27
9y-9x=27
__ __ __

9 9 9

y+x=9+
y-x=3

2y =12
y=6


6+x=9
x =9-6
x =3

The numbers = 63

[pwdivfc]

Sire thankyou so much. Ad sirnte class kand poyath kond enikk examinu 15/15 kitti. Athin karanam ad sir aaan. Thankyou so much ad sir. And thankyou so much xylem teem❤️❤️❤️❤️❤️❤️

[anashyac]

Very useful class, Thank you sirand thank you Xylem❤

[musafarhajara]

Ee video innale ee samayath aan vanathenkil 😢. Inn enikk examinu ee same question chodichu enikk answer kittiyilla 😢😢

[peasant.vvpeasant.v]

My first experience for coming in the xylem and i got full mark thank you so much ad sir and my xylem

[sunithasunitha]

x+y=9
10y+x
10x+y +27=10y+x
27=10 y+x-10x -y
27=9y-9x
27/9=9y/9 - 9x/9
3=y-x
y+x=9 +
y-x=3
2y=12
y=12/2=6
x+y=9
x+6=9
x=9-6=3
10x+y =(10×3)+6
=36
10y + x =(10×6)+3
=63
36+27=63

[muhammedzain]

Sir I didn't understand I saw the video two times

[remyasheneesh]

x + y = 9
(10y) + x
10x + y + 27 = 10y + x
27 = 10y + x - 10x -y
9y - 9x = 27
9y÷9 - 9x÷9 = 27÷9
y - x = 3

y + x = 9 + y - x = 3
2y = 12
y = 12÷2 = 6

x = 9 - 6 = 3

x = 3
y = 6
Number = 63

[anuradha]

Thank you sir for this wonderful class 😊❤

[Sivanyahhh-wd]

Maths onam examin venddi kanunnar unddo🤭ellavarum athinan kannunnath enn ellavarkkum ariyam🤣

[sreeharisreehari.n.v]

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