Question

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

Answer 1

Answer:

the value for m is -34/39.

Step-by-step explanation:

Adding both equations we get

x = -13/4

and subtracting both equations we get

y = 35/6

now put these values in the third equation

ie y = mx + 3 we get

35/6 = m(-13/4) + 3

m(-13/4) = 35/6 - 3

m(-13/4) = 35/6 - 18/6

m(-13/4) = 17/6

m = 17/6 × -4/13

m = 17(-4) / 6(13)

m = -68 / 78

m = -34/39