Question

Solve 2 x + 3 y= 11 and 2x - 4 y = -24 and hence find the value of 'm' for which y= mx + 3 ​

Answer 1

Answer:

that is very very hard bro

Answer 2

Answer:

m = -1

Step-by-step explanation:

2x + 3y = 11 ----------(1)

2x - 4y = -24 -----------(2)

on subtract eq 1 and 2

2x + 3y = 11

2x - 4y = -24

- + +

7y = 35

y = 35/7

y = 5

put y in eq 1

2x + 3(5) = 11

2x + 15 = 11

2x = 11 - 15

2x = -4

x = -4/2

x = -2

put x and y in y = mx + 3

5 = m(-2) + 3

5 = -2m + 3

5 - 3 = -2m

2 = -2m

2/(-2) = m

-1 = m