Question

find (m+n) divided by (m-n) if m = 4/5 and n = -3/10

Answer 1

Answer:

It two linear equations has infinitely many solutions means

a

1

/a

2

=b

1

/b

2

=c

1

/c

2

here two linear equations are

3x+4y=12 and

(m+n)x+2(m−n)y=5(m)−1

i.e,

m+n

3

=

2(m−n)

4

=

5m−1

12

6(m−n)=4(m+n).

m+n

3

=

5m−1

12

6m−6n=4m+4n 3(5m−1)=12m+12n

2m−10n=0⋯(1) 3m−12n=3⋯(2)

similarly (1)×3 & (2)×2

6m−30n=0

6m−24n=6

____________

6n=6 ⇒n=1

now from (1)2m−10=0

m=5

Answer 2

Answer:

hope this helps thank you

answer is 11/5