Question

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

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

solution

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

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

solving by elimination method

2x+3y=11

2x-4y=-24

- + +

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7y=35

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so, y=5.

now, put value of y in.......(1)

2x+3y=11

2x+3(5)=11

2x+15=11

2x=11-15

2x=-4

x=-4/2

x=-2

given , y=mx+3.......(3)

now substitute the value of x and y in (3)

5=m(-2)+3

5-3=-2m

2=-2m

or ,

-2m=2

m=2/-2

m=-1

value of m=-1

pls correct your Statement