Question

Question No. 1
The system of equation X+2y=5, ax +(a-b)y=10 has infinite many solution, then
a+b=0
A)
a+b=1
B)
a+b=2
C)
a+b=3
D)​

Answer 1

Answer:

c one is tha correct answer

Answer 2

Answer:

Hey there

Pls refer below for the soln of ur asked query

Step-by-step explanation:

Since the given eqns have infinitely many solns

So

$\frac{1}{a} = \frac{a}{a - b} = \frac{5}{10}$

1/a =5/10

------

a=2

------

a/a-b = 5/10

2/2-b =1/2

Cross Multiplying

4= 2-b

--------

b= -2

--------

Thus

a+b = 2+(-2)= 0

a+b=0

which is the required ans

Feel Free to ask a doubt if you have any!