Question

(ক) প্রতিস্থাপন পদ্ধতিতে সমাধান কর (১-১২) :
x + y = 4
x- y=2
s! 2x + y = 5
x - y = 1
1
1
х
+
ST
a b
Y
+
a b
y
a
b Б
3x - 2y = 0
17x - 7 y = 13
1 1
a
b b
9 1 ax + by = ab
bx + ay = ab
bol ax – by = ab
bx - ay = ab
১১।
ху
- +
1 1 5
So I - +
6
1 1 1 1
a
1
+-
b
a
b
y 2 1
ху
х
-
=
-
b
a b a
ху
6​

Answer 1

Answer:

What you have written in Bengali I can't understand